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

Chelmsford Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-2.8812499999999996	-7.2		3.6374999999999997	-1.5
	-5.012500000000001	-10.1		2.61875	-4.8
	-5.700000000000001	-7		0.55625	-0.1
	-5.562500000000001	-6.5		1.8625	-0.5
	-5.86875	-11.7		1.26875	-6.4
	-5.8999999999999995	-4.8		0.7	-0.3
	-7.44375	-0.6		-0.18125000000000013	4.1
	-7.6812499999999995	-1		-0.43750000000000006	7.1
	-6.824999999999998	-4.5		0.018750000000000044	5
	-5.425000000000001	1.6		2.9	7.2
	-4.2625	-0.3		2.9437499999999996	5.5
	-2.8375	-4.3		5.1187499999999995	2.4
	-4.550000000000002	-0.9		4.675	4.2
	-6.012499999999999	2.2		1.0125	7.5
Jan.	-5.9937499999999995	-5.5		0.05624999999999997	4.5
	-5.606249999999998	-6.6		1.9124999999999999	-1
	-5.331250000000001	-2.1		1.0187499999999998	2.2
	-6.05625	-2.8		1.8375000000000001	2.3
	-5.162499999999999	-4.6		1.9749999999999999	0
	-6.825	-9.2		0.65	-2.8
	-8.68125	-10.1		-2.3187499999999996	-3
	-9.29375	-0.8		-1.3187499999999999	4.9
	-8.15	-7		0.14999999999999983	-1.1
	-7.58125	-15.3		-0.018750000000000044	-9.8
	-5.78125	-13.6		1.8499999999999999	-8.2
	-5.624999999999999	-10.3		1.45	-3.1
	-4.74375	-12.3		2.275	-6.1
	-5.525	-13		1.0625	-3.9
	-7.331250000000001	-11.8		-0.125	-5.8
	-8.106250000000001	-16.5		-0.29375000000000007	-8.1
	-8.531249999999998	-16.8		0.2062500000000001	-4.6
	-7	-12.4		1.8812499999999999	-4.3
	-6.218750000000001	-12.2		1.7124999999999997	-0.9
	-6.51875	-13.2		1.23125	0
	-6.49375	-6.1		2.2937499999999997	0.7
	-6.9625	-9.1		2.5187500000000003	-3.2
	-7.324999999999999	-11.8		1.0687499999999999	-4
	-5.843750000000002	-13.2		1.5	-1.9
	-6.581249999999999	-18.2		1.6249999999999998	-8.2
	-7.7	-14.6		-0.10624999999999987	-1.5
	-6.1375	-10.4		2.2875	-1.1
	-7.281250000000001	-4.5		0.9187500000000001	0.9
	-7.768749999999999	-5.3		1.6937499999999999	2.1
	-7.543750000000001	-8.6		0.3874999999999999	2.2
	-7.624999999999999	-6		0.6249999999999997	2
Feb.	-7.912499999999999	-3.9		2.1624999999999996	0.9
	-4.4312499999999995	-4.3		3.5125	2
	-5.7875000000000005	-1.5		2.8375000000000004	3.5
	-6.83125	-1.8		2.55625	1.4
	-6.331250000000001	-3.6		3.0062499999999996	4.3
	-5.31875	-1.8		2.6062499999999997	1.8
	-4.7562500000000005	-2.6		4.225	0.2
	-4.26875	-5.4		5.3	0.4
	-3.4374999999999996	-5.4		5.487500000000001	-0.3
	-4.1937500000000005	-6.9		5.125	-0.2
	-3.2687500000000003	-10.4		4.19375	2.2
	-5.675000000000002	-3.7		2.76875	3.9
	-5.593749999999999	-6.4		3.9249999999999994	3.4
	-3.91875	-2.3		4.48125	6.3
	-4.5562499999999995	-3.4		5.41875	0.6
	-4.425000000000001	-12.6		3.7125	-1.7
	-6.031250000000001	-7.9		2.73125	-0.1
	-4.775	-0.9		3.05625	8.3
	-4.818749999999999	-4.9		3.39375	0.8
	-4.343749999999999	0.1		4.393750000000001	1
	-4.262499999999999	0.3		4.7375	5.2
	-3.45	5.5		6.024999999999999	12.2
	-2.46875	1.7		6.9125	14
	-1.74375	5.1		8.525	11.2
	0.3875	3.3		9.05625	7.2
	-0.9437500000000001	-1.5		7.218750000000001	11.9
	-2.7874999999999996	-2.5		6.23125	3.9
	-1.0125	-0.2		7.2562500000000005	5.2
Mar.	-0.7937500000000002	-1.6		7.262499999999999	4.1
	-1.73125	1.3		6.325000000000001	14.1
	-2.0625000000000004	-3		7.675	15.4
	-1.3125	-5.1		8.43125	0.9
	-1.6125	-3.7		6.9937499999999995	4.4
	-1.075	-0.1		9.225000000000001	9.6
	-0.4312499999999999	1.5		9.293750000000001	9.5
	-0.91875	3.2		8.450000000000001	7.9
	-1.85	0.2		7.6812499999999995	2.9
	-0.39375000000000004	-1.4		7.725	6.9
	-0.5125	0.8		8.056249999999999	8.3
	-0.5125	4		7.73125	15.2
	-1.9875	0.9		7.650000000000001	11
	-0.6312500000000001	-4.7		8.2875	-0.2
	0.44375	-3.7		8.799999999999999	7.1
	0.81875	2.8		8.874999999999996	15.3
	1.4	7.9		10.76875	12.9
	0.9874999999999999	4.3		10.51875	20.6
	0.13124999999999998	1.4		10.15625	2.8
	1.2999999999999998	2.5		11.381250000000001	17.6
	1.4875	3.3		10.274999999999999	13.5
	1.30625	3.5		9.3875	11.9
	1.1625	1.4		10.618750000000002	9.7
	1.8062500000000001	-0.8		11.54375	7.2
	2.2937499999999997	-1.3		11.149999999999999	12.1
	1.5250000000000001	-1.3		11.643750000000002	18.1
	2.8312500000000003	1.7		13.462499999999999	24.6
	3.91875	5.8		14.599999999999998	16.2
	4.687499999999999	1.2		13.700000000000001	15.8
	5.49375	5.3		15.343750000000004	25.3
	6.093750000000001	12.9		16.74375	31.6
Apr.	4.55	11.2		14.912500000000001	25.9
	3.9875	9		13.250000000000002	22.3
	4.762499999999999	10.8		13.4875	19.3
	3.4437499999999996	7.3		13.8625	14.8
	4.9437500000000005	2.7		14.3625	10.6
	4.85625	0.2		14.93125	10.1
	4.55625	-0.7		15.225000000000001	12
	4.937499999999999	0.1		15.643749999999997	8.3
	4.54375	3.7		14.231250000000003	19.6
	5.124999999999999	1		16.73125	14.7
	5.849999999999999	0.7		14.00625	16.6
	5.1312500000000005	3.5		14.3	18.5
	4.6812499999999995	3.8		14.54375	22.3
	5.23125	4.6		16.381249999999998	19.2
	5.668749999999999	6.7		15.6875	13.9
	6.1000000000000005	7.1		14.58125	10.9
	5.6625000000000005	5.5		16.137500000000003	19.1
	7.4875	5.8		17.75	12.3
	8.4375	4.9		18.150000000000002	13
	8.35	3.3		16.9875	24.5
	7.675	11.9		15.750000000000002	30.1
	7.374999999999999	15		17.068750000000005	27.6
	8.08125	8.8		19.012500000000003	19.8
	7.74375	4.4		17.762499999999996	16.5
	7.00625	4.3		15.993749999999999	14.8
	7.550000000000001	8.4		17.693749999999998	22.9
	7.89375	9.2		18.256249999999998	20.2
	7.393750000000002	4.3		18.625	18.5
	7.468749999999999	6		18.04375	19.8
	7.981250000000001	9.8		19.018749999999997	16.7
May	9.7	8.5		21.025000000000002	12.7
	11.643749999999999	7.1		21.349999999999998	27.5
	10.35	16		20.593750000000004	32.3
	9.59375	14.2		20.20625	29.3
	9.293750000000001	13.6		18.99375	37.5
	10.33125	16.2		21.118750000000002	31.9
	9.8625	8.9		21.91875	22.6
	10.606249999999998	6.9		21.087500000000002	23.2
	10.712499999999999	8.2		21.581249999999997	23.2
	10.537500000000001	10		22.09375	12.4
	10.481250000000001	11.5		21.41875	21.9
	11.418750000000001	11.8		24.89375	30.4
	12.475	17.2		24.987500000000004	32.7
	12.56875	14.1		22.593750000000004	23.5
	12.59375	10.8		22.28125	21.8
	12.912500000000001	6.5		24.112499999999997	13.1
	12.9375	3.8		23.56875	20
	12.693749999999998	7.2		23.787499999999994	18.8
	12.031249999999998	6.7		23.23125	26.2
	10.9625	10.2		21.175	32
	11.54375	14.4		21.2125	34.5
	11.9125	15.5		22.924999999999997	34.7
	13.14375	15.7		23.193750000000005	34.6
	13.18125	16.1		23.45625	27.7
	13.756250000000003	11.7		24.868750000000002	29.1
	13.2125	13.3		24.39375	32.3
	13.03125	17.1		23.225	34.7
	13.275	20.9		23.218749999999993	33.4
	13.91875	20.9		23.812500000000004	35.1
	14.33125	20.6		23.481250000000003	32.3
	13.024999999999999	16.5		23.15625	36.1
Jun.	13.1125	18.4		23.13125	26
	13.20625	13.9		24.43125	28.1
	14.043750000000001	12.3		24.674999999999997	28.6
	14.424999999999999	16.5		25.874999999999996	30.4
	15.4	15.6		26.787499999999998	27.8
	14.94375	16.4		27.08125	27.5
	15.706249999999999	14.8		27.90625	28.2
	15.99375	12.8		27.331249999999997	29
	16.487499999999997	16.5		26.8625	23.1
	16.387500000000003	14.8		28.587500000000002	30.2
	16.85625	15.2		27.887499999999996	31.6
	15.9125	17.5		27.025000000000002	25.7
	16.0625	16.6		26.10625	28.9
	16.162499999999998	16.6		26.40625	32.9
	17.01875	16.5		27.775	33.8
	17.28125	15.6		28.131249999999994	34.1
	17.96875	21.1		28.581249999999997	38.3
	18.1875	25.3		27.75625	39.6
	17.656250000000004	25.5		28.943749999999998	39.3
	17.099999999999994	23.7		27.831250000000004	35.7
	17.5625	18.1		29.94375	34.2
	18.762500000000003	19.4		30.68125	29
	18.768749999999997	17.1		29.356250000000003	19.7
	18.581250000000004	15.6		28.73125	31.5
	18.04375	17.5		28.006249999999998	34.6
	17.68125	22.2		27.7	31.4
	17.793749999999996	16.5		28.368750000000002	33.2
	18.65	15		29.318750000000005	32
	18.299999999999994	16		28.46875	33.6
	18.474999999999998	20.4		28.168749999999996	36.3
Jul.	18.8125	22.4		29.249999999999996	34.4
	19.21875	16.1		30.268749999999997	34.4
	19.6875	14		30.499999999999996	32
	19.2625	14.2		28.775	32.4
	18.86875	18.7		30.9	29.8
	19.424999999999997	12.8		30.7125	31.6
	19.125	15.5		29.393750000000004	30.6
	18.2125	18		29.15625	30.8
	18.2125	13.8		28.293750000000003	28.9
	18.068749999999998	12.4		28.456250000000004	31.1
	17.65	14.4		26.375	31
	17.512500000000003	10.7		28.131249999999998	28.9
	18.393749999999997	11.4		28.781250000000004	32.5
	18.65	16.9		29.831249999999997	28.7
	18.712500000000002	18.9		29.54375	25.9
	18.225	17.7		28.181250000000002	23.8
	17.03125	16.1		29.162500000000005	29.1
	17.525000000000002	17.2		26.98125	32.9
	17.531250000000004	21		28.4125	33.1
	17.675	19.2		28.474999999999998	28.2
	18.70625	16.1		29.3125	32.9
	18.037499999999998	16.7		28.175000000000004	33.9
	17.65625	21.2		29.268750000000008	33.6
	18.0125	23.2		27.637500000000003	37
	17.793750000000003	22		27.393749999999997	33.7
	17.91875	20.3		28.25	35.2
	17.593749999999996	17.7		28.793749999999996	33.9
	18.125000000000004	20.5		27.94375	33.6
	18.2875	16.5		29.05	31.7
	18.556250000000002	18.8		27.606250000000003	31.9
	17.374999999999996	16.1		27.925	30.9
Aug.	16.925	13.8		26.968749999999996	27.5
	16.91875	12.5		27.006249999999998	28.6
	17.506249999999998		17.1	27.8875		19.8
	17.50625		14.7	27.468750000000004		28.9
	17.3375		15.1	27.768749999999997		31.3
	17.29375		18.5	27.575000000000003		30.3
	16.837500000000002		16	27.2625		29.4
	16.862499999999997		16.3	26.418750000000003		24.4
	16.21875		18.2	25.093750000000004		21.4
	15.94375		16.5	27.13125		27.5
	17.15625		17.3	27.637500000000003		27.4
	17.05		16.8	28.9125		28.4
	16.68125		16.3	26.850000000000005		26.7
	15.85		16.1	26.137500000000003		26.2
	16.575000000000003		16	27.28125		25.8
	16.54375		16	27.381249999999998		27.4
	16.306250000000002		16.3	27.262499999999996		27.3
	15.6125		15.8	26.375		25.8
	16.01875		15.4	26.68125		26.2
	16.00625		15.7	26.48125		26.7
	15.9375		15.9	26.88125		26.7
	15.950000000000001		15.9	26.11875		26
	16.0125		15.7	25.38125		25
	14.7875		14.8	24.46875		24.8
	15.056249999999997		14.8	25.337500000000002		25.3
	14.7125		14.7	24.424999999999997		24.3
	14.343749999999996		14	23.8125		22.7
	15.1125		14.1	25.324999999999996		24.8
	14.49375		14.5	24.262500000000003		24.1
	14.2875		14.6	23.70625		24.2
	13.8375		14.1	24.4625		24.3
Sep.	13.400000000000004		12.9	24.487499999999997		23.6
	12.70625		12.3	22.706250000000004		22.4
	12.049999999999999			22.84375
	13.33125			23.425
	12.793750000000003			22.13125
	12.012500000000001			21.699999999999996
	12.343750000000002			22.24375
	12.85625			21.875000000000004
	12.9			22.468749999999996
	12.843750000000002			22.362499999999997
	12.481250000000001			21.874999999999996
	13.262499999999998			22.900000000000002
	12.662500000000001			22.962500000000002
	13.100000000000001			22.8125
	12.88125			20.96875
	11.387500000000001			19.34375
	10.918750000000001			19.33125
	10.46875			18.337499999999995
	10.218750000000002			18.0125
	11.03125			19.174999999999997
	10.9			18.868750000000002
	10.581249999999999			19.8875
	11.237499999999997			21.637499999999996
	10.8625			19.368750000000002
	9.381250000000001			17.84375
	8.943749999999998			17.71875
	9.125			17.587500000000002
	8.774999999999999			17.60625
	8.6625			16.9875
	8.80625			17.331249999999997
Oct.	8.8			17.58125
	8.35625			17.068749999999998
	7.424999999999998			16.29375
	6.5875			15.55
	6.156250000000001			16.21875
	8.100000000000001			17.86875
	8.3			17.5875
	8.71875			17.3375
	7.625000000000001			15.724999999999998
	6.975			14.606250000000001
	7.49375			15.106250000000003
	6.9437500000000005			13.956250000000002
	6.375			13.824999999999998
	5.79375			13.893749999999999
	5.731249999999999			12.706249999999997
	5.325			12.381250000000001
	5.2250000000000005			13.86875
	5.025000000000001			13.40625
	4.78125			13.424999999999999
	3.5000000000000004			13.068750000000001
	3.65625			11.5875
	4.449999999999999			12.981250000000003
	5.5			13.4125
	5.4125			13.981249999999998
	3.3312500000000003			10.731250000000001
	3.1374999999999993			12
	3.3			11.731250000000001
	2.78125			10.443750000000001
	3.10625			12.175
	2.01875			10.081249999999999
	0.8187499999999999			7.8687499999999995
Nov.	1.1874999999999996			8.731250000000001
	1.74375			9.53125
	1.74375			9.481250000000001
	1.08125			9.299999999999999
	0.04374999999999994			8.04375
	0.1937500000000001			7.568749999999999
	-0.5937500000000001			7.46875
	0.18750000000000006			7.18125
	-0.18749999999999992			7.225
	-0.5000000000000001			7.262500000000001
	0.5062500000000001			8.24375
	0.59375			8.24375
	1.1187500000000001			8.375000000000002
	-0.15624999999999994			6.71875
	-0.5687500000000001			6.19375
	-1.0375			6.8062499999999995
	0.36874999999999997			6.737499999999999
	0.2937499999999999			6.7125
	0.2187500000000001			6.731249999999999
	-1.2874999999999999			5.25
	-1.03125			6.6312500000000005
	-0.25624999999999987			6.95625
	-2.1125			4.15
	-3.925			2.2874999999999996
	-2.00625			4.6375
	-1.59375			4.8
	-2.2187499999999996			5.14375
	-2.4062500000000004			5.587499999999999
	-2.25			4.8999999999999995
	-2.4875000000000003			4.26875
Dec.	-2.5375			4.456249999999999
	-2.50625			3.3562500000000006
	-3.537500000000001			2.662499999999999
	-2.4999999999999996			3.7437500000000004
	-3.7937500000000006			3.4749999999999996
	-3.89375			2.5124999999999997
	-3.2875			3.85625
	-1.55			5.218750000000001
	-2.4250000000000003			4.49375
	-2.98125			2.8625000000000003
	-3.4187499999999993			2.95625
	-3.0374999999999996			3.13125
	-3.4437499999999996			3.6750000000000007
	-3.2812500000000004			4.65
	-3.5812500000000003			2.5312500000000004
	-4.318749999999999			1.8874999999999997
	-3.3200000000000007			2.7666666666666666

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

40°C

Highest Temp

2 Jul. 26

-18°C

Lowest Temp

8 Feb. 26

Seasonal Breakdown

Hottest MonthAugust32.41°C

Coldest MonthFebruary-7.34°C

Wettest MonthMarch7.94mm

Windiest MonthJanuary18.69km/h

Chelmsford 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 Chelmsford historically?

July is historically Chelmsford's hottest month, with average maximum temperatures around 29°C. During peak heatwave events, the highest recorded temperatures have reached 40°C on 2026-07-02.

2. What is the coldest month in Chelmsford historically?

January is Chelmsford's coldest month, with average minimum temperatures around -6°C. The all-time record low of -25°C was recorded on 2016-02-14.

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

Chelmsford's average annual rainfall is approximately 1244.6mm, based on records spanning 17 years.

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

Chelmsford historically records approximately 169.8 rainy days per year. December has the highest number of rain days at an average of 14.06 days.

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

The all-time highest temperature recorded in Chelmsford is 40°C on 2026-07-02.

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

The all-time lowest temperature recorded in Chelmsford is -25°C on 2016-02-14.

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

Chelmsford experiences its strongest winds during March. The historic gust record of 46.9 kph was recorded on 2012-10-29.

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

Usually, Chelmsford's humidity peaks in February at around 77.5% and drops to its lowest in April at approximately 69.06%.

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