Grantham weather by month

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

Temperature
Rainfall
Sunshine & UV index

Temperature in Grantham (°F)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	43	43	48	54	61	66	70	70	64	57	48	45
Min temperature (night-time)	32	32	36	37	43	48	52	52	48	43	37	34
Heat & Humidity	0	0	0	0	0	0	0	0	0	0	0	0

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

Sunshine & UV index in Grantham

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	2	2	3	4	6	7	6	5	5	3	2	2
Daily hours of daylight	8	10	12	14	16	17	16	15	13	11	9	8
UV Index (Maximum)	1	1	2	4	5	6	6	5	4	2	1	0

Rainfall in Grantham

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	17	14	15	14	14	12	11	13	12	14	15	15
Average monthly rainfall (inches)	2.0	1.6	1.9	2.0	2.1	2.1	1.9	2.4	1.9	1.9	2.2	2.1

More about Grantham

Grantham by month

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

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The climate guide for England (Grantham) 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 Grantham?

Grantham has a temperate climate with warm summers and some rainfall in all months.

Grantham weather in January

Expect daytime maximum temperatures of 43°F in Grantham, England in January based on long-term weather averages. There are 2 hours of sunshine per day on average with 17 days with some rainfall and typically 2.0 inches of rainfall in the month.

43
43°F max day temperature
2
2 hours of sunshine per day
17
17 days with some rainfall
32
32°F min night temperature
8
8 hours of daylight per day
0
No heat & humidity
2.0
2.0 inches of monthly rainfall
1
1 (Low) UV index

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Grantham weather in February

Expect daytime maximum temperatures of 43°F in Grantham, England in February based on long-term weather averages. There are 2 hours of sunshine per day on average with 14 days with some rainfall and typically 1.6 inches of rainfall in the month.

43
43°F max day temperature
2
2 hours of sunshine per day
14
14 days with some rainfall
32
32°F min night temperature
10
10 hours of daylight per day
0
No heat & humidity
1.6
1.6 inches of monthly rainfall
1
1 (Low) UV index

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Grantham weather in March

Expect daytime maximum temperatures of 48°F in Grantham, England in March based on long-term weather averages. There are 3 hours of sunshine per day on average with 15 days with some rainfall and typically 1.9 inches of rainfall in the month.

48
48°F max day temperature
3
3 hours of sunshine per day
15
15 days with some rainfall
36
36°F min night temperature
12
12 hours of daylight per day
0
No heat & humidity
1.9
1.9 inches of monthly rainfall
2
2 (Low) UV index

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Grantham weather in April

Expect daytime maximum temperatures of 54°F in Grantham, England in April based on long-term weather averages. There are 4 hours of sunshine per day on average with 14 days with some rainfall and typically 2.0 inches of rainfall in the month.

54
54°F max day temperature
4
4 hours of sunshine per day
14
14 days with some rainfall
37
37°F min night temperature
14
14 hours of daylight per day
0
No heat & humidity
2.0
2.0 inches of monthly rainfall
4
4 (Moderate) UV index

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Grantham weather in May

Expect daytime maximum temperatures of 61°F in Grantham, England in May based on long-term weather averages. There are 6 hours of sunshine per day on average with 14 days with some rainfall and typically 2.1 inches of rainfall in the month.

61
61°F max day temperature
6
6 hours of sunshine per day
14
14 days with some rainfall
43
43°F min night temperature
16
16 hours of daylight per day
0
No heat & humidity
2.1
2.1 inches of monthly rainfall
5
5 (Moderate) UV index

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Grantham weather in June

Expect daytime maximum temperatures of 66°F in Grantham, England in June based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 2.1 inches of rainfall in the month.

66
66°F max day temperature
7
7 hours of sunshine per day
12
12 days with some rainfall
48
48°F min night temperature
17
17 hours of daylight per day
0
No heat & humidity
2.1
2.1 inches of monthly rainfall
6
6 (High) UV index

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Grantham weather in July

Expect daytime maximum temperatures of 70°F in Grantham, England in July based on long-term weather averages. There are 6 hours of sunshine per day on average with 11 days with some rainfall and typically 1.9 inches of rainfall in the month.

70
70°F max day temperature
6
6 hours of sunshine per day
11
11 days with some rainfall
52
52°F min night temperature
16
16 hours of daylight per day
0
No heat & humidity
1.9
1.9 inches of monthly rainfall
6
6 (High) UV index

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Grantham weather in August

Expect daytime maximum temperatures of 70°F in Grantham, England in August based on long-term weather averages. There are 5 hours of sunshine per day on average with 13 days with some rainfall and typically 2.4 inches of rainfall in the month.

70
70°F max day temperature
5
5 hours of sunshine per day
13
13 days with some rainfall
52
52°F min night temperature
15
15 hours of daylight per day
0
No heat & humidity
2.4
2.4 inches of monthly rainfall
5
5 (Moderate) UV index

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Grantham weather in September

Expect daytime maximum temperatures of 64°F in Grantham, England in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 12 days with some rainfall and typically 1.9 inches of rainfall in the month.

64
64°F max day temperature
5
5 hours of sunshine per day
12
12 days with some rainfall
48
48°F min night temperature
13
13 hours of daylight per day
0
No heat & humidity
1.9
1.9 inches of monthly rainfall
4
4 (Moderate) UV index

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Grantham weather in October

Expect daytime maximum temperatures of 57°F in Grantham, England in October based on long-term weather averages. There are 3 hours of sunshine per day on average with 14 days with some rainfall and typically 1.9 inches of rainfall in the month.

57
57°F max day temperature
3
3 hours of sunshine per day
14
14 days with some rainfall
43
43°F min night temperature
11
11 hours of daylight per day
0
No heat & humidity
1.9
1.9 inches of monthly rainfall
2
2 (Low) UV index

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Grantham weather in November

Expect daytime maximum temperatures of 48°F in Grantham, England in November based on long-term weather averages. There are 2 hours of sunshine per day on average with 15 days with some rainfall and typically 2.2 inches of rainfall in the month.

48
48°F max day temperature
2
2 hours of sunshine per day
15
15 days with some rainfall
37
37°F min night temperature
9
9 hours of daylight per day
0
No heat & humidity
2.2
2.2 inches of monthly rainfall
1
1 (Low) UV index

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Grantham weather in December

Expect daytime maximum temperatures of 45°F in Grantham, England in December based on long-term weather averages. There are 2 hours of sunshine per day on average with 15 days with some rainfall and typically 2.1 inches of rainfall in the month.