Calgary, Alberta, Canada Climate Change Severity

Very High

The current climate change severity in Calgary is Very High, with a 30.6% worsening in the climate score compared to last 16 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.

Data: Jan. to Aug. (Historical Vs 2026) - Weather Data Only

Low

020

Moderate

2040

High

4060

Very High

6080

Extreme

80100

°C

Calgary Climate Change Analysis

Real-time Weather

All Years

Temperature (°C)

Years

Years	Min Temp.	Avg Temp.	Max Temp.
	-10.983870967741936	-7.1483870967741945	-2.6903225806451614
	-8.717857142857143	-4.560714285714286	1.257142857142857
	-2.509677419354839	2.229032258064517	8.33225806451613
	-0.516666666666667	4.8	10.173333333333337
	1.5516129032258068	7.1806451612903235	12.345161290322585
2010	6.873333333333333	12.786666666666665	18.03666666666667
	9.332258064516129	15.687096774193549	21.941935483870967
	8.625806451612902	14.567741935483872	21.141935483870967
	3.8766666666666665	8.606666666666666	14.416666666666664
	1.8612903225806443	6.40967741935484	13.038709677419359
	-10.673333333333336	-6.043333333333334	-0.49000000000000166
	-14.819354838709677	-10.66774193548387	-5.145161290322581
	-15.23870967741936	-11.23225806451613	-7.067741935483871
	-15.646428571428574	-11	-5.760714285714285
	-10.264516129032259	-6.216129032258064	-1.396774193548388
	-4.889999999999999	0.29666666666666675	5.293333333333333
	2.735483870967742	8.583870967741934	13.803225806451614
2011	7.016666666666667	12.273333333333332	17.32333333333333
	8.912903225806453	15.274193548387094	21.374193548387098
	8.829032258064517	15.477419354838707	22.083870967741937
	7.0233333333333325	13.47	20.966666666666672
	0.5322580645161292	5.170967741935483	11.496774193548385
	-7.109999999999999	-3.369999999999999	1.5
	-8.7	-4.6483870967741945	-0.5838709677419354
	-11.654838709677419	-7.651612903225807	-3.258064516129033
	-9.168965517241379	-4.699999999999999	0.6931034482758621
	-4.751612903225806	-0.37419354838709645	5.003225806451613
	-0.5333333333333331	4.659999999999999	9.996666666666668
	2.8451612903225807	8.951612903225806	14.435483870967744
2012	7.296666666666665	12.92	18.059999999999995
	11.67741935483871	17.580645161290324	23.0741935483871
	10.222580645161289	16.706451612903226	23.587096774193554
	7.483333333333333	13.950000000000001	21.716666666666665
	-2.1870967741935488	1.9483870967741939	7.106451612903227
	-9.090000000000002	-5.06	-0.37333333333333346
	-16.035483870967738	-11.90967741935484	-7.396774193548388
	-12.64193548387097	-8.483870967741936	-3.587096774193548
	-7.539285714285714	-3.7964285714285713	1.4357142857142862
	-9.729032258064516	-4.696774193548387	0.8096774193548387
	-3.936666666666667	0.8166666666666668	5.573333333333334
	4.70967741935484	10.983870967741934	16.822580645161292
2013	7.586666666666667	13.143333333333333	18.456666666666663
	9.806451612903224	15.806451612903226	21.612903225806452
	10.364516129032255	17.183870967741928	24.138709677419357
	8.053333333333331	13.953333333333335	20.680000000000003
	-0.08064516129032263	4.62258064516129	10.916129032258066
	-9.330000000000002	-5.6033333333333335	-1.0933333333333335
	-17.05483870967742	-11.674193548387096	-6.854838709677417
	-10.754838709677419	-6.37741935483871	-1.667741935483871
	-17.660714285714285	-13.02142857142857	-7.560714285714284
	-11.645161290322582	-7.34516129032258	-2.6741935483870973
	-2.6399999999999997	2.773333333333333	8.286666666666667
	2.732258064516129	8.790322580645162	14.264516129032254
2014	6.719999999999999	12.513333333333334	17.746666666666673
	11.43225806451613	18.40322580645161	25.309677419354834
	10.196774193548388	16.335483870967742	22.641935483870967
	5.4300000000000015	10.993333333333334	17.500000000000004
	2.7	7.490322580645162	13.861290322580645
	-11.41	-7.0633333333333335	-2.146666666666667
	-9.587096774193549	-5.848387096774193	-1.7580645161290323
	-10.267741935483873	-6.345161290322582	-1.7516129032258065
	-9.492857142857144	-5.610714285714286	-0.8464285714285714
	-3.6709677419354834	1.1967741935483869	7.1645161290322585
	-1.0599999999999996	5.01	10.98
	4.009677419354839	10.23225806451613	15.73225806451613
2015	9.44	15.773333333333333	21.496666666666666
	11.216129032258063	17.39032258064516	23.39354838709678
	10.025806451612903	16.751612903225805	23.754838709677422
	5.316666666666668	10.613333333333332	16.87333333333333
	2.6064516129032254	7.54516129032258	13.6258064516129
	-5.986666666666666	-2.453333333333333	2.1933333333333334
	-10.874193548387098	-7.4161290322580635	-3.3419354838709676
	-12.10967741935484	-7.751612903225806	-2.9903225806451617
	-4.606896551724137	-1.0206896551724143	3.7586206896551726
	-1.4645161290322577	2.6774193548387095	7.8096774193548395
	2.1133333333333337	8.106666666666667	14.100000000000001
	4.893548387096774	11.080645161290322	16.451612903225808
2016	8.97	15.479999999999997	21.576666666666668
	10.290322580645162	15.796774193548387	21.238709677419358
	9.916129032258064	15.525806451612901	21.641935483870967
	5.5266666666666655	10.74	16.83
	-0.7838709677419353	2.8258064516129036	7.8838709677419345
	-1.4466666666666663	2.1166666666666663	7.186666666666666
	-16.145161290322584	-12.709677419354838	-8.648387096774192
	-13.190322580645164	-9.119354838709674	-4.667741935483869
	-11.853571428571428	-7.885714285714288	-3.4535714285714283
	-8.196774193548386	-3.0935483870967744	2.4322580645161294
	-0.6866666666666668	3.796666666666666	8.736666666666666
	5.458064516129032	11.987096774193546	18.229032258064514
2017	8.629999999999999	14.700000000000001	20.473333333333333
	11.541935483870965	18.645161290322584	25.303225806451614
	11.16451612903226	17.66774193548387	24.43870967741936
	6.973333333333333	12.569999999999997	18.89333333333333
	1.1645161290322579	5.55483870967742	10.990322580645163
	-8.9	-4.829999999999999	-0.23666666666666641
	-10.929032258064519	-7.4548387096774205	-3.706451612903226
	-11.380645161290323	-6.800000000000002	-2.096774193548387
	-18.457142857142856	-12.942857142857141	-7.467857142857142
	-9.735483870967744	-5.1806451612903235	-0.09032258064516145
	-4.656666666666666	0.8633333333333337	6.886666666666667
	7.5516129032258075	13.854838709677416	19.825806451612902
2018	8.876666666666665	14.893333333333334	20.29666666666667
	11.1	17.548387096774192	23.825806451612902
	11.483870967741936	18.009677419354837	25.032258064516125
	3.2800000000000002	7.406666666666665	12.223333333333331
	-0.5548387096774198	3.319354838709678	8.709677419354838
	-4.266666666666667	-0.9633333333333332	3.0966666666666667
	-7.719354838709679	-4.316129032258066	-0.2548387096774194
	-7.432258064516127	-3.409677419354838	1.164516129032258
	-22.667857142857148	-18.039285714285715	-13.100000000000005
	-8.11290322580645	-2.9516129032258074	3.4064516129032256
	-0.7100000000000001	4.596666666666667	10.113333333333333
	3.6258064516129034	9.003225806451612	14.025806451612901
2019	8.173333333333332	13.709999999999999	19.073333333333327
	9.990322580645163	15.370967741935482	20.877419354838704
	10.116129032258064	15.306451612903224	21.029032258064518
	6.650000000000001	10.826666666666664	15.543333333333335
	-3.319354838709677	1.183870967741935	6.858064516129033
	-6.986666666666666	-3.213333333333333	0.5600000000000002
	-9.312903225806453	-6.161290322580646	-2.545161290322581
	-13.758064516129032	-10.112903225806448	-6.148387096774193
	-9.113793103448275	-4.658620689655171	0.024137931034482796
	-9.467741935483874	-4.738709677419356	0.735483870967742
	-3.86	1.1266666666666665	6.749999999999999
	3.5677419354838698	9.041935483870967	14.22258064516129
2020	8.450000000000001	13.389999999999997	18.21333333333333
	10.60967741935484	15.96774193548387	21.190322580645162
	10.71290322580645	16.967741935483872	23.454838709677425
	7.91	13.136666666666667	19.200000000000003
	-1.5612903225806445	2.3096774193548377	6.990322580645161
	-6.610000000000001	-1.99	2.326666666666667
	-7.090322580645161	-3.619354838709678	0.0709677419354836
	-9.229032258064517	-5.338709677419356	-1.0516129032258068
	-18.36428571428571	-13.817857142857147	-9.075
	-4.0935483870967735	0.6387096774193549	6.567741935483871
	-1.4966666666666666	4.0233333333333325	9.979999999999999
	3.629032258064516	8.99677419354839	14.445161290322586
2021	11.053333333333333	17.28666666666667	23.39333333333333
	13.332258064516127	19.554838709677416	25.7
	11.064516129032256	16.693548387096776	22.329032258064515
	7.0633333333333335	12.580000000000002	19.03333333333334
	0.6225806451612903	5.525806451612904	11.364516129032253
	-3.916666666666666	-0.026666666666666616	4.98
	-17.23548387096774	-13.167741935483871	-8.951612903225806
	-12.070967741935487	-7.5	-3.229032258064516
	-9.964285714285712	-5.317857142857142	-0.32857142857142846
	-4.9483870967741925	-0.5483870967741934	4.7774193548387105
	-2.813333333333334	1.826666666666667	6.923333333333334
	3.312903225806451	9.19677419354839	14.870967741935484
2022	8.223333333333333	13.193333333333333	18.166666666666664
	11.838709677419356	17.58709677419355	23.76774193548387
	12.619354838709677	19.0258064516129	26.25161290322581
	8.84	14.819999999999999	21.64333333333333
	2.803225806451612	8.187096774193547	14.76451612903226
	-11.65	-7.179999999999998	-2.47
	-17.616129032258062	-12.89354838709677	-8.251612903225807
	-9.270967741935486	-5.351612903225806	-1.2064516129032257
	-11.089285714285717	-6.564285714285715	-1.8357142857142859
	-12.487096774193551	-7.025806451612902	-1.1354838709677415
	-1.5900000000000003	3.8299999999999996	9.74
	7.564516129032258	14.63225806451613	21.393548387096775
2023	9.716666666666665	15.999999999999998	22.156666666666663
	11.170967741935486	17.73548387096774	24.64193548387097
	11.258064516129032	17.825806451612905	24.96451612903225
	7.519999999999999	13.256666666666668	19.889999999999993
	0.07741935483870926	4.725806451612903	10.261290322580644
	-3.5433333333333326	0.08666666666666657	4.939999999999999
	-5.032258064516128	-2.109677419354838	1.441935483870968
	-14.080645161290319	-10.448387096774193	-6.387096774193549
	-8.472413793103447	-4.648275862068965	0.15862068965517248
	-8.364516129032257	-4.564516129032256	-0.2935483870967742
	0.023333333333333324	4.313333333333333	8.736666666666668
	4.141935483870968	8.574193548387097	13.377419354838713
2024	6.77	12.343333333333334	17.913333333333338
	13.14838709677419	19.567741935483873	25.958064516129028
	11.293548387096774	16.751612903225805	23.022580645161284
	8.856666666666666	14.42	20.616666666666664
	1.5548387096774194	6.483870967741934	12.67741935483871
	-7.390000000000001	-3.9400000000000004	-0.5000000000000004
	-7.548387096774195	-4.393548387096775	-1.6354838709677422
	-9.996774193548386	-6.60967741935484	-3.3096774193548386
	-16.946428571428577	-12.875000000000002	-8.532142857142857
	-3.9419354838709677	-0.2064516129032258	4.319354838709677
	-0.31333333333333313	4.95	10.256666666666666
	6.064516129032258	12.564516129032258	18.854838709677423
2025	9.566666666666668	15.469999999999997	21.063333333333336
	11.419354838709676	16.851612903225806	22.26774193548387
	11.664516129032258	18.067741935483877	24.52903225806452
	10.436666666666664	16.256666666666664	22.410000000000004
	0.9133333333333333	5.519999999999999	11.323333333333332
	-3.913333333333333	-0.3800000000000001	3.936666666666668
	-12.425806451612903	-7.9645161290322575	-3.3387096774193554
	-8.56774193548387	-4.9322580645161285	-1.116129032258064
	-7.953571428571429	-3.596428571428571	1.5464285714285715
	-5.9806451612903215	-1.545161290322581	3.3774193548387084
	-1.9233333333333333	4.299999999999999	11.076666666666666
2026	6.948387096774193	13.348387096774193	20.148387096774197
	8.37	13.399999999999999	19.180000000000003
	13.161290322580646	20.95161290322581	29.087096774193547
	11.006451612903225	17.22258064516129	24.335483870967746

Max Temp.

Avg Temp.

Min Temp.

Calgary Weather Condition Changes (Historic Vs 2026)

2026

Historic

2026

Over the past 16 year(s), Calgary temperature has changed by around +35.4%, and has experienced notable climate changes.

Sunny

Cloudy

Rainy

Snowy

Misty

Data: Jan. to Aug. (Historical Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

Sunny

41117

185.3%

Cloudy

5930

-49.1%

Rainy

9740

-58.7%

Snowy

-14.2%

Misty

100%

Disclaimer: Other weather conditions not shown may affect the total day count.

Climate Change Indicators:

Over the past 16 years, Calgary has experienced measurable shifts in key climate parameters, contributing to the current severity score of 62 (within the Very High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

62/100

Very High

Low

020

Moderate

2040

High

4060

Very High

6080

Extreme

80100

From 2010 to 2026, Calgary experienced significant changes:

Temperature change of

+1.94 °C

Variation in annual rainfall

+13.63 %

Change in average humidity

-12.88 %

PM2.5 levels surged by

-11.14 %

Heatwave changed by

+10 Days

Coldwave changed by

-10 Days

Wind speeds changed by

+3.3 km/h

These indicators show a dramatic increase in volatility and worsening conditions. Calgary's Very High severity status requires urgent and immediate adaptation and mitigation strategies, particularly focused on managing extreme weather events, improving air quality, and ensuring water resources are adequate for the population.

Check how we calculate Climate Change Severity

Based on data from Jan. to Aug.

Calgary Weather Forecast 30 Days (September - October 2026)
Calgary, Alberta, Canada

Condition

Temperature

Humi.

Wind Speed

Fri. 25, Sep.

Overcast

25°/10°

44%

37.4km/h

Sat. 26, Sep.

Overcast

9°/3°

75%

21.2km/h

Sun. 27, Sep.

Overcast

13°/1°

60%

10.8km/h

Mon. 28, Sep.

Sunny

16°/3°

42%

14.8km/h

Tue. 29, Sep.

Overcast

18°/5°

40%

29.9km/h

Wed. 30, Sep.

Overcast

15°/4°

51%

15.5km/h

Thu. 1, Oct.

Patchy rain nearby

11°/3°

58%

13.3km/h

Fri. 2, Oct.

Snow Showers

4°/0°

90%

20.2km/h

Sat. 3, Oct.

Rain

12°/2°

68%

16.7km/h

Sun. 4, Oct.

Rain

13°/3°

65%

16.7km/h

Mon. 5, Oct.

Rain

13°/2°

62%

16.3km/h

Tue. 6, Oct.

Heavy Rain

14°/3°

59%

16.9km/h

Wed. 7, Oct.

Rain

14°/4°

58%

18km/h

Thu. 8, Oct.

Rain

12°/2°

65%

19.3km/h

Fri. 9, Oct.

Rain Possible

12°/1°

61%

17km/h

Sat. 10, Oct.

Heavy Rain

12°/2°

64%

18.9km/h

Sun. 11, Oct.

Rain

9°/0°

66%

18.9km/h

Mon. 12, Oct.

Heavy Rain

10°/0°

63%

18km/h

Tue. 13, Oct.

Rain Possible

9°/-1°

67%

17.3km/h

Wed. 14, Oct.

Rain

12°/0°

64%

17.3km/h

Thu. 15, Oct.

Rain Possible

12°/1°

63%

16.7km/h

Fri. 16, Oct.

Heavy Rain

13°/1°

63%

17.8km/h

Sat. 17, Oct.

Rain

13°/1°

54%

20.8km/h

Sun. 18, Oct.

Rain Possible

12°/1°

57%

16.6km/h

Mon. 19, Oct.

Rain

14°/2°

61%

17.4km/h

Tue. 20, Oct.

Rain Possible

11°/2°

66%

19km/h

Wed. 21, Oct.

Rain

11°/0°

66%

16.1km/h

Thu. 22, Oct.

Rain Possible

9°/0°

67%

16.7km/h

Fri. 23, Oct.

Rain Showers

7°/-1°

69%

17.9km/h

Sat. 24, Oct.

Rain

7°/-2°

66%

16.3km/h

Sun. 25, Oct.

Rain Possible

7°/-3°

66%

19.7km/h

Highest & Lowest Weather Forecasts

Temperature

High will be onFri. 25, Sep.

25°C

Low will be onSun. 25, Oct.

-3°C

Humidity

High will be onFri. 2, Oct.

90%

Low will be onTue. 29, Sep.

40%

Wind Speed

High will be onFri. 25, Sep.

37.4km/h

Low will be onSun. 27, Sep.

10.8km/h

Precipitation

High will be onFri. 2, Oct.

13.3mm

Low will be onSat. 26, Sep.

0.02mm

High will be onTue. 29, Sep.

Low will be onSat. 26, Sep.

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Calgary Weather Condition Changes (Historic Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

Climate Change Indicators:

Severity Score

From 2010 to 2026, Calgary experienced significant changes:

Calgary Weather Forecast 30 Days (September - October 2026)
Calgary, Alberta, Canada

Highest & Lowest Weather Forecasts

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Comparison of Weather Condition (Historic Vs 2026)

Climate Change Indicators:

Severity Score

From 2010 to 2026, Calgary experienced significant changes:

Calgary Weather Forecast 30 Days (September - October 2026)Calgary, Alberta, Canada

Highest & Lowest Weather Forecasts

Our Blogs

New Delhi's August Heat Surge, Dust Storms, and September Reset

Gurgaon's August Heat Surge, Sandstorms, and September Cool-Off

Amritsar August Heat Surge: Rain Fades, Haze Holds Firm

The Night a Wall of Dust Swallowed Phoenix: What 1,520 Air Quality Readings Reveal About Arizona's Air

New Delhi's Brutal June-July Swing: From 45°C to Monsoon Lows

London's July 2026 Heatwave: From 20°C to 34°C in Weeks

World Top 10 Hottest Cities Are All in India Again - May 2026

Delhi Air Quality 2026 vs 6-Year Historical PM2.5 Data

What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation

World Top Hottest Cities Belong to India - April 2026

Construction Air Pollution: The Invisible Hazard Reshaping India's Urban Air

Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

Mumbai Air Quality Comparison of 2025 Vs 2026 (Jan-Feb)

Why AQI Standards Vary Across the World - And Why Air Quality Index Matters More Than Ever

Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

Calgary Weather Forecast 30 Days (September - October 2026)
Calgary, Alberta, Canada