Johnstown Historic Weather Records
Analyse hottest, coldest, windiest & wettest days

Johnstown Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-3.6062499999999993	-10.3		2.9875	-4
	-4.9750000000000005	-9.2		1.3125000000000002	-3
	-5.724999999999999	-7.4		0.16250000000000023	-3.9
	-6.53125	-6.5		1.7624999999999997	-3.8
	-6.812500000000001	-6.3		-0.5437499999999998	5.6
	-7.8	2.8		-0.7812499999999999	5.1
	-9.03125	0.8		-2.8062500000000004	5
	-8.50625	1.2		-1.2312499999999997	8.2
	-7.725	2.4		0.3687499999999999	11.3
	-7.8375	2.4		0.46875	6.6
	-4.9125000000000005	-4.5		2.7999999999999994	3.8
	-3.2875000000000005	-5		4.33125	0.1
	-5.406249999999999	-2.6		1.8250000000000002	4.4
	-6.8187500000000005	-3.4		0.35624999999999996	3.9
Jan.	-6.7875000000000005	-10.8		-0.24375000000000013	-5.1
	-6.96875	-9.8		0.6562500000000002	-2.2
	-6.275	-4.9		0.6750000000000002	1.7
	-6.38125	-11.4		-0.16250000000000006	-2.4
	-6.05	-14.6		0.7374999999999998	-4.9
	-9.1	-16.2		-0.8375	-7.6
	-10.96875	-12		-2.40625	-0.9
	-12.06875	-5.3		-1.9437499999999999	-0.8
	-8.25625	-15.3		-0.4499999999999998	-5.2
	-7.9875	-19		-0.6062499999999997	-12
	-6.468750000000001	-13.5		1.31875	-11.4
	-6.037499999999999	-12.4		1.5687499999999999	-6.2
	-8.156249999999998	-17.8		0.8375	-10.2
	-7.781250000000001	-17.3		-0.12500000000000003	-11.4
	-8.2	-15.9		-0.48124999999999996	-11.1
	-9.799999999999999	-18.9		0.3375000000000002	-10.2
	-7.706249999999999	-19.5		1.125	-11.3
	-5.85625	-18		1.9875	-10.1
	-7.437500000000001	-12.5		1.71875	-5
	-5.949999999999998	-7.7		1.84375	-2.4
	-6.718749999999998	-13.5		2.7125	-6.4
	-5.850000000000001	-11		1.8562499999999997	-7
	-7.562500000000002	-9.8		1.7499999999999998	-3.8
	-6.737500000000001	-18.6		3.9437500000000005	-6
	-7.44375	-18.7		1.9625	-8.3
	-7.593750000000001	-21.8		1.49375	-3.8
	-7.318749999999999	-6.7		0.6500000000000001	3.7
	-6.06875	-5.5		1.7624999999999997	-0.3
	-7.456249999999999	-7.3		0.7375	-5.4
	-7.275	-8.1		0.29374999999999996	-3.3
	-7.5625	-1.8		0.9999999999999997	2.4
Feb.	-6.55	2		2.38125	6.5
	-6.24375	-3.2		2.5875000000000004	3.3
	-6.875	1.1		1.7125	5.6
	-6.35625	3.7		3.1999999999999993	7.6
	-6.875	3.2		2.20625	8.4
	-5.887499999999999	2.5		3.08125	11.5
	-4.9624999999999995	-0.7		5.175000000000001	2.7
	-3.0062500000000005	-2.9		4.875	1.5
	-2.1750000000000003	-6.9		6.606249999999999	-0.7
	-3.6750000000000007	-10.4		6.375	-2.9
	-4.3	-1.9		3.80625	2.4
	-5.231250000000001	-4.4		2.6125	4.7
	-4.606250000000001	-4.3		4.4750000000000005	11.8
	-5.01875	0.8		5.5125	10.6
	-3.8625	-5.4		6.125	3.6
	-4.75	-6.4		4.1	2.9
	-5.774999999999999	-2.6		3.38125	6.6
	-4.9625	3.7		3.9625	9.4
	-5.85625	5.6		4.7562500000000005	13.1
	-5.718749999999999	11.8		4.63125	17.1
	-4.137499999999999	4.9		5.65	19.9
	-3.28125	6.5		5.94375	15.7
	-1.8499999999999999	5.3		8.368749999999999	19.2
	-0.4687500000000001	9.1		9.6625	17.1
	-0.4	14.5		8.318749999999998	21.3
	-2.70625	-2.3		7.55	9.4
	-3.1062499999999997	-1.8		7.175000000000001	8.8
	-0.5	-2.1		8.118749999999999	4.4
Mar.	-0.7625000000000002	1.1		8.55	8.1
	0.006249999999999756	-2.4		8.975	13.2
	-0.8062500000000001	-7.2		9.2125	-3.8
	0.07499999999999987	-8.3		9.51875	0.1
	-0.7437499999999999	-2		8.98125	8.7
	-0.8750000000000001	2		8.424999999999999	15
	0.006250000000000089	1.2		10.03125	6.5
	-1.2562499999999999	7.2		7.13125	21.1
	-1.79375	2		8.5875	9.4
	0.14375	-5.2		10.0875	8.9
	0.6812500000000001	-0.3		10.406249999999998	12.9
	-0.5750000000000001	7.1		7.975000000000001	16.7
	-2.0374999999999996	1.7		8.881249999999998	15.9
	0.23125000000000012	-5		9.49375	4.4
	0.7562500000000001	-1.3		11.137500000000001	12
	1.1375	7.1		10.99375	10.3
	0.275	12		12.2875	19.1
	0.375	14.4		10.1625	20.9
	0.5062499999999999	11.2		11.162499999999998	19.9
	1.7375000000000003	11.2		12.40625	25.7
	1.6937499999999999	13.9		12.70625	28.6
	1.9874999999999998	3.3		12.806249999999999	13
	1.96875	0.1		13.375	10.2
	2.8625	-1.3		12.299999999999999	5.3
	1.8312500000000005	-4.8		12.043750000000001	15
	2.125	0.5		12.118749999999999	23.7
	2.8874999999999997	6		14.006250000000001	25.9
	4.168749999999999	6.3		13.69375	16.8
	5.0687500000000005	4.1		15.049999999999999	27.9
	5.231249999999999	14.6		15.71875	27.4
	5.45625	13.8		17.06875	26.9
Apr.	3.6999999999999993	14.5		15.9625	28.9
	4.525	16.3		14.356250000000001	29.3
	3.4999999999999996	13.6		13.318750000000001	24
	3.443750000000001	10.8		15.218750000000002	29.9
	5.3625	2.4		14.543750000000001	8.5
	4.518749999999999	-0.1		16.48125	5.5
	4.012499999999999	-3.4		15.337499999999999	19.6
	3.2250000000000005	8.9		12.981250000000001	24.6
	2.79375	10.4		14.237499999999999	26.4
	3.8125	12.4		14.325	25.6
	5.012499999999998	10		15.168750000000001	16.9
	4.08125	6.7		15.693750000000005	12
	3.9	3.2		15.675	22.2
	4.9437500000000005	9.6		14.41875	16
	4.925000000000001	9.5		14.862499999999999	20.1
	6.349999999999999	3.8		17.1375	9.5
	7.599999999999998	0.7		18.15	14.8
	9.30625	1.1		18.625000000000004	8.2
	8.725000000000001	0.1		19.075000000000003	15.1
	9.10625	3.5		18.5875	23.3
	7.2875	12.1		17.556250000000002	24.6
	6.71875	7.8		16.5375	14.9
	7.025	3.9		16.8375	14.8
	7.2125	3.7		18.787499999999998	17.9
	7.293749999999998	8.1		17.44375	17.3
	6.7250000000000005	7		17.6375	16.3
	7.2375	4.8		17.268749999999997	15.2
	7.406249999999999	2.6		17.63125	22
	8.01875	8.8		16.743750000000002	21.5
	8.58125	5.9		19.181249999999995	8.1
May	8.4	4.7		19.98125	18.8
	9.85	6.8		19.3	27
	9.825000000000001	13.6		19.825000000000003	28.9
	9.3	15.5		19.775	32.4
	9.88125	18		20.00625	29.4
	9.59375	12.6		21.168749999999996	24.2
	10.73125	7.7		21.918749999999996	18.7
	10.506250000000001	9.2		20.90625	15.4
	10.81875	8.3		20.43125	10.6
	10.081249999999999	9		20.7	17.8
	10.45	13.5		22.612500000000004	22.7
	11.962499999999999	14		24.156249999999996	25.1
	12.724999999999998	18		23.675	26.6
	13.431249999999997	12.7		23.08125	22.3
	13.856249999999998	8.1		24.1375	24.8
	13.806249999999999	11.1		23.65625	21.9
	12.7	7.7		24.062500000000004	24.6
	11.625	8.8		23.043749999999996	23.6
	11.15	9.7		22.349999999999998	22.4
	11.600000000000001	8.1		21.487499999999997	27.3
	12.1375	10		23.793749999999996	28.4
	12.700000000000001	12		23.71875	29.2
	12.50625	16.1		21.8875	28.9
	12.6	16.2		22.51875	28.8
	11.893749999999999	14.1		22.64375	28.8
	12.262500000000001	15.8		22.693749999999998	28.3
	12.893749999999999	19.8		23.95	28.8
	13.7	21.6		23.9875	32.4
	14.331249999999999	19.8		24.843749999999996	30.1
	14	15.4		23.512500000000003	28.4
	13.168750000000001	15.1		22.856249999999996	28.7
Jun.	11.981249999999998	12.8		23.406250000000004	19.9
	13.66875	8.3		23.562500000000004	24.9
	13.9125	12.9		24.631250000000005	27
	14.775000000000002	18.2		25.862500000000004	28.1
	14.825	15.4		25.118749999999995	24.9
	14.96875	13.1		25.443749999999998	25.6
	15.2375	12.3		26.20625	25.2
	15.237499999999999	15.3		26.337499999999995	26.5
	15.618749999999999	15.5		26.41875	24.1
	15.612500000000002	11.9		25.625	25.9
	15.087499999999999	12.2		25.49375	27.8
	14.424999999999997	16.1		25.64375	27.4
	15.131250000000001	17.6		24.40625	21.2
	15.137500000000003	18.3		24.893749999999997	24.9
	14.5875	16		26.931250000000002	30.2
	15.4875	18.3		26.91875	33.2
	15.231250000000001	20.9		25.918750000000003	34.7
	15.78125	21.4		26.2375	35.1
	15.1625	22.4		26.35	36
	15.54375	19.9		26.95625	35.2
	16.2375	18.2		27.9875	30.3
	17.662499999999998	17.8		28.375	27.3
	17.65	19.4		28.15	27.7
	17.206249999999997	19.6		26.89375	30.3
	16.825000000000003	19.4		27.193750000000005	29.5
	16.193749999999998	19.1		27.45625	28.3
	16.331249999999997	18.4		27.843750000000004	29
	16.7625	17.3		27.0125	28.2
	16.674999999999997	17		27.5625	30.8
	17.3	17		26.725	32.7
Jul.	16.193749999999998	19.7		27.76875	34.9
	16.450000000000003	21.8		27.76875	33.6
	17.30625	16		27.937500000000004	29.7
	17.118750000000002	17.3		27.38125	30
	17.5125	17.5		27.556250000000002	24.3
	17.393749999999997	11.9		28.575	29.1
	17.737499999999997	17.4		26.862499999999997	28.9
	16.037499999999998	15.1		26.318749999999998	23
	16.55625	10.2		27.131250000000005	24.4
	16.712500000000002	11.2		27.131249999999998	28.2
	16.443749999999998	15.8		25.975	27.2
	15.618749999999999	16.2		27.85625	28.2
	16.9	15.9		27.7	29.9
	16.775	19		27.031250000000004	26.6
	16.14375	17.3		26.331249999999997	23.5
	15.231250000000001	13.7		26.20625	27.9
	15.468749999999998	12.4		25.8625	28.2
	16.08125	15.6		25.90000000000001	30
	15.031249999999998	20		26.28125	26.7
	15.875	18.3		26.425000000000004	26.3
	16.08125	12.3		27.349999999999994	29.8
	15.774999999999999	18.4		26.13125	29
	15.799999999999999	18.9		26.10625	29.8
	16.44375	18.7		26.031249999999996	29.4
	15.900000000000002	18.3		25.99375	28.2
	16.1875	19.6		26.887500000000006	29.3
	16.05	17.8		26.606250000000003	30.1
	15.943749999999996	18.2		26.181250000000002	26.8
	15.643750000000002	16.9		26.406250000000004	25.2
	15.5125	17.8		25.375	27.8
	15.275000000000002	17.9		24.925	26.2
Aug.	15.25625	16.5		25.4375	28.7
	15.33125		17.1	25.66875		28.6
	15.524999999999999		14.4	26.981250000000006		25.3
	15.99375		11.5	25.168750000000003		26.2
	14.76875		13.1	25.231249999999996		28.4
	15.337499999999997		15.5	25.83125		26.5
	15.53125		14.9	26.050000000000004		24.1
	14.818750000000003		15.7	24.462500000000002		29.7
	13.787500000000001		15	24.24375		22
	14.1125		14.2	25.456249999999997		25.7
	14.05625		14.4	25.599999999999998		25.6
	14.593750000000002		14.7	25.60625		25.6
	15.325000000000001		15.6	25.525		26.1
	15.568750000000003		15.8	26.1375		25.7
	15.524999999999999		15	26.2875		25.7
	14.962500000000002		14.5	25.868749999999995		25.5
	15.0875		14.6	24.96875		24.7
	14.29375		14.4	25.01875		24.4
	14.95625		14.1	25.56875		25
	14.96875		14.4	25.543749999999996		25.4
	14.68125		14.6	25.293750000000003		25.4
	14.731249999999998		14.3	24.081249999999997		24.4
	13.112499999999999		13.4	24.025000000000002		24.7
	13.425		13.7	24.156249999999996		23.4
	12.837500000000002		12.7	23.418750000000003		23.1
	12.593750000000004		12.7	22.343749999999996		22.3
	12.506250000000001		12.5	22.562499999999996		22.9
	12.89375		12.3	23.825		22.9
	13.124999999999998		12.8	23.1625		23
	12.312499999999998		12.7	21.99375		22.3
	12.093750000000002		12	22.96875		23
Sep.	11.00625		10.6	23.225		22.4
	11.049999999999999			21.781250000000004
	11.274999999999999			21.668750000000003
	11.549999999999999			23.14375
	12.33125			22.2875
	11.61875			22.5625
	11.84375			23.3
	11.962499999999999			22.137500000000003
	10.84375			20.74375
	11.006249999999998			21.425
	11.418750000000001			21.318749999999998
	11.343750000000002			21.181250000000002
	11.256250000000001			20.79375
	11.756249999999998			20.574999999999996
	11.30625			20.2625
	10.012500000000003			19.206249999999997
	9.406250000000002			18
	9.24375			18.91875
	9.80625			18.993750000000002
	9.231250000000001			19.06875
	9.15625			19.38125
	10.143749999999999			20
	9.125			19.281250000000004
	8.837499999999999			17.95625
	7.4312499999999995			17.412499999999998
	7.237499999999999			18.40625
	7.718749999999999			17.737500000000004
	7.074999999999999			16.943749999999998
	7.8125			16.1
	7.5062500000000005			16.0125
Oct.	6.7875			16.618750000000002
	5.668750000000002			14.287500000000001
	4.5125			12.6125
	3.95625			13.756250000000003
	4.387499999999999			15.212499999999999
	5.6499999999999995			14.78125
	5.78125			14.85
	5.36875			14.075
	4.39375			14.287500000000001
	6.062499999999998			15.806249999999999
	5.287500000000001			14.600000000000001
	4.9			13.23125
	4.7250000000000005			13.88125
	4.949999999999999			13.431249999999999
	4.018750000000001			10.631250000000001
	3.5000000000000004			11.631249999999998
	3.3625			12.0125
	3.3374999999999995			10.731250000000001
	1.88125			11.512500000000001
	1.15			11.418750000000001
	2.0374999999999996			11.6125
	3.5625			11.537500000000001
	3.5625000000000004			13.6875
	2.7375			11.375000000000004
	0.70625			11.174999999999999
	0.8812499999999999			11.681249999999999
	0.8062500000000001			9.91875
	1.5687500000000003			10.743750000000002
	0.84375			10.656250000000002
	-1.1125			6.975
	-0.71875			6.9624999999999995
Nov.	-0.99375			7.225
	0.4124999999999998			7.875000000000001
	0.13124999999999998			7.2250000000000005
	-0.94375			7.462500000000001
	-0.9250000000000002			7.2
	-1.3499999999999999			7.093749999999999
	-0.725			7.175
	-1.31875			6.518749999999999
	-2.10625			6.137499999999999
	-1.68125			6.793750000000001
	-0.6625000000000002			6.95625
	-1.25			6.8875
	-0.9937500000000001			5.8687499999999995
	-1.5875000000000004			3.68125
	-2.9375			4.53125
	-1.71875			6.08125
	-1.0125			6.225
	-0.8375000000000001			6.23125
	-1.8062500000000001			4.925
	-2.1625			4.0687500000000005
	-1.125			5.69375
	-2.13125			4.768750000000001
	-4.08125			1.6937499999999999
	-4.39375			1.7750000000000001
	-2.6312499999999996			4.20625
	-3.2750000000000004			3.3
	-3.125			3.2125000000000004
	-4.1			3.15
	-4.093750000000001			2.8750000000000004
	-3.4312499999999995			3.1624999999999996
Dec.	-3.4124999999999996			3.28125
	-3.525000000000001			2.4187499999999997
	-3.3000000000000003			2.8499999999999996
	-3.7375			2.91875
	-5.2124999999999995			2.2249999999999996
	-4.4			2.6125000000000003
	-3.25625			4.6375
	-1.2875			4.649999999999999
	-3.46875			4.4875
	-3.5500000000000003			2.9812500000000006
	-2.65			3.55
	-3.5562499999999995			2.3125
	-3.3749999999999996			3.4312500000000004
	-3.5374999999999996			4.7125
	-3.075			3.812500000000001
	-2.5812500000000003			4.075
	-2.8400000000000003			3

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

36°C

Highest Temp

3 Jul. 26

-22°C

Lowest Temp

9 Feb. 26

Seasonal Breakdown

Hottest MonthJuly29.44°C

Coldest MonthJanuary-9.04°C

Wettest MonthMarch10.61mm

Windiest MonthJanuary22.53km/h

Johnstown Climate Change InsightsSee how climate patterns are evolving over time. Temperature shifts, rainfall trends, and extreme events—all in one place.

Weather City Ranking GloballyExplore Real time of the world’s hottest & Coldest Cities based on current temperature data.

Frequently Asked Questions

1. What is the hottest month in Johnstown historically?

July is historically Johnstown's hottest month, with average maximum temperatures around 27°C. During peak heatwave events, the highest recorded temperatures have reached 36°C on 2026-07-03.

2. What is the coldest month in Johnstown historically?

January is Johnstown's coldest month, with average minimum temperatures around -7°C. The all-time record low of -26°C was recorded on 2015-02-24.

3. What is the average annual rainfall in Johnstown over the past 17 years?

Johnstown's average annual rainfall is approximately 1408.2mm, based on records spanning 17 years.

4. How many rainy days does Johnstown experience on average per year?

Johnstown historically records approximately 223.3 rainy days per year. June has the highest number of rain days at an average of 20 days.

5. What is the all-time highest temperature ever recorded in Johnstown?

The all-time highest temperature recorded in Johnstown is 36°C on 2026-07-03.

6. What is the all-time lowest temperature ever recorded in Johnstown?

The all-time lowest temperature recorded in Johnstown is -26°C on 2015-02-24.

7. What is the windiest time of year in Johnstown historically?

Johnstown experiences its strongest winds during January. The historic gust record of 47.9 kph was recorded on 2025-12-29.

8. What is the highest and lowest humidity in Johnstown during a year?

Usually, Johnstown's humidity peaks in January at around 85.5% and drops to its lowest in June at approximately 77.5%.

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Johnstown Historic Weather Records
Analyse hottest, coldest, windiest & wettest days