Stamford weather by month

Check out Stamford weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature
Rainfall
Sunshine & UV index

Temperature in Stamford (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	2	4	9	15	21	26	29	28	23	18	12	5
Min temperature (night-time)	-8	-7	-2	3	8	13	16	15	11	5	1	-5
Heat & Humidity	0	0	0	0	0	L	M	M	0	0	0	0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Stamford

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	5	6	7	8	8	9	9	8	7	7	5	4
Daily hours of daylight	10	11	12	13	15	15	15	14	12	11	10	9
UV Index (Maximum)	2	2	4	6	7	8	8	8	6	4	2	1

Rainfall in Stamford

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	11	10	11	11	11	11	9	9	8	8	11	12
Average monthly rainfall (mm)	100	90	116	124	126	94	100	118	100	99	121	115

More about Stamford

Stamford by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Connecticut

GO Airport Shuttle discount code: 5% off airport transfers

Discount Code

Save EXTRA 5% on airport transfers worldwide
Book private taxis & shuttle buses with discount code
Enter in coupon box on 'Reservations' page

Show discount code

******WEB

Redeem GO Airport Shuttle discount code >>

Expires at 23:59 on Thursday 31st Dec 2026

The climate guide for Connecticut (Stamford) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Stamford?

Stamford has a cold climate with hot summers and some rainfall in all months.

Stamford weather in January

Expect daytime maximum temperatures of 2°C in Stamford, Connecticut in January based on long-term weather averages. There are 5 hours of sunshine per day on average with 11 days with some rainfall and typically 100 mm of rainfall in the month, which might fall as snow.

2
2°C max day temperature
5
5 hours of sunshine per day
11
11 days with some rainfall
-8
-8°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
100
100 mm of monthly rainfall
2
2 (Low) UV index

Back to months

Stamford weather in February

Expect daytime maximum temperatures of 4°C in Stamford, Connecticut in February based on long-term weather averages. There are 6 hours of sunshine per day on average with 10 days with some rainfall and typically 90 mm of rainfall in the month, which might fall as snow.

4
4°C max day temperature
6
6 hours of sunshine per day
10
10 days with some rainfall
-7
-7°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
90
90 mm of monthly rainfall
2
2 (Low) UV index

Back to months

Stamford weather in March

Expect daytime maximum temperatures of 9°C in Stamford, Connecticut in March based on long-term weather averages. There are 7 hours of sunshine per day on average with 11 days with some rainfall and typically 116 mm of rainfall in the month.

9
9°C max day temperature
7
7 hours of sunshine per day
11
11 days with some rainfall
-2
-2°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
116
116 mm of monthly rainfall
4
4 (Moderate) UV index

Back to months

Stamford weather in April

Expect daytime maximum temperatures of 15°C in Stamford, Connecticut in April based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 124 mm of rainfall in the month.

15
15°C max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
3
3°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
124
124 mm of monthly rainfall
6
6 (High) UV index

Back to months

Stamford weather in May

Expect daytime maximum temperatures of 21°C in Stamford, Connecticut in May based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 126 mm of rainfall in the month.

21
21°C max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
8
8°C min night temperature
15
15 hours of daylight per day
0
No heat & humidity
126
126 mm of monthly rainfall
7
7 (High) UV index

Back to months

Stamford weather in June

Expect daytime maximum temperatures of 26°C in Stamford, Connecticut in June based on long-term weather averages. There are 9 hours of sunshine per day on average with 11 days with some rainfall and typically 94 mm of rainfall in the month.

26
26°C max day temperature
9
9 hours of sunshine per day
11
11 days with some rainfall
13
13°C min night temperature
15
15 hours of daylight per day
L
Low heat & humidity
94
94 mm of monthly rainfall
8
8 (Very High) UV index

Back to months

Stamford weather in July

Expect daytime maximum temperatures of 29°C in Stamford, Connecticut in July based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 100 mm of rainfall in the month.

29
29°C max day temperature
9
9 hours of sunshine per day
9
9 days with some rainfall
16
16°C min night temperature
15
15 hours of daylight per day
M
Moderate heat & humidity
100
100 mm of monthly rainfall
8
8 (Very High) UV index

Back to months

Stamford weather in August

Expect daytime maximum temperatures of 28°C in Stamford, Connecticut in August based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 118 mm of rainfall in the month.

28
28°C max day temperature
8
8 hours of sunshine per day
9
9 days with some rainfall
15
15°C min night temperature
14
14 hours of daylight per day
M
Moderate heat & humidity
118
118 mm of monthly rainfall
8
8 (Very High) UV index

Back to months

Stamford weather in September

Expect daytime maximum temperatures of 23°C in Stamford, Connecticut in September based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 100 mm of rainfall in the month.

23
23°C max day temperature
7
7 hours of sunshine per day
8
8 days with some rainfall
11
11°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
100
100 mm of monthly rainfall
6
6 (High) UV index

Back to months

Stamford weather in October

Expect daytime maximum temperatures of 18°C in Stamford, Connecticut in October based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 99 mm of rainfall in the month.

18
18°C max day temperature
7
7 hours of sunshine per day
8
8 days with some rainfall
5
5°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
99
99 mm of monthly rainfall
4
4 (Moderate) UV index

Back to months

Stamford weather in November

Expect daytime maximum temperatures of 12°C in Stamford, Connecticut in November based on long-term weather averages. There are 5 hours of sunshine per day on average with 11 days with some rainfall and typically 121 mm of rainfall in the month.

12
12°C max day temperature
5
5 hours of sunshine per day
11
11 days with some rainfall
1
1°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
121
121 mm of monthly rainfall
2
2 (Low) UV index

Back to months

Stamford weather in December

Expect daytime maximum temperatures of 5°C in Stamford, Connecticut in December based on long-term weather averages. There are 4 hours of sunshine per day on average with 12 days with some rainfall and typically 115 mm of rainfall in the month, which might fall as snow.