Annual mean 9°C · wettest around April · prevailing wind SW
Warmest
25.1 °C
Coldest
-3.8 °C
Wettest
53%
Windiest
5.7 m/s
Prevailing
SW
4.7 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Grafton over the whole year is 9°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -6°C. Grafton has no sharply defined rainy season: the chance of rain on a given day runs from 57% in February, the driest month, to 62% in April, the wettest. Winds in Grafton are highest in February, averaging 4.2 m/s (15 km/h), and lightest in August, at 2.9 m/s (10 km/h). The prevailing wind is from the SW. The clearest skies in Grafton come in July, when the sky is typically 37% covered; January is the cloudiest month, at 64%.
Month by month Grafton climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
-3°C
-6°C
-10°C
58%
64%
4.1 m/s
0
0
1
February
-1°C
-5°C
-7°C
57%
52%
4.2 m/s
0
0
4
March
4°C
-0°C
-2°C
61%
54%
4.2 m/s
1
0
11
April
9°C
4°C
4°C
62%
55%
4.1 m/s
10
0
32
May
15°C
11°C
13°C
61%
49%
3.5 m/s
37
6
61
June
22°C
17°C
21°C
61%
41%
3.3 m/s
63
25
54
July
25°C
19°C
25°C
60%
37%
3.0 m/s
66
45
35
August
24°C
18°C
24°C
60%
41%
2.9 m/s
71
39
40
September
21°C
15°C
19°C
60%
44%
3.1 m/s
67
19
63
October
14°C
8°C
9°C
61%
51%
3.6 m/s
26
2
54
November
6°C
2°C
0°C
59%
53%
4.0 m/s
5
0
18
December
0°C
-2°C
-6°C
58%
62%
4.0 m/s
0
0
3
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Grafton weather by season
Year round, Grafton has days of about -3°C at their warmest in January, its coolest month, and 25°C in July, its warmest; the coolest hours of the day run from -6°C to 19°C through the year, and the average temperature over the year is 9°C around the clock. Rain is most likely around April and least likely around February. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Grafton weather in winterDecember to February
High -1°CLow -5°CRain 58%
Winter in Grafton has typical daily highs of about -1°C and lows of about -5°C, with a 58% chance of rain on a given day.
Grafton weather in springMarch to May
High 9°CLow 5°CRain 61%
Spring in Grafton has typical daily highs of about 9°C and lows of about 5°C, with a 61% chance of rain on a given day.
Grafton weather in summerJune to August
High 24°CLow 18°CRain 60%
Summer in Grafton has typical daily highs of about 24°C and lows of about 18°C, with a 60% chance of rain on a given day.
Grafton weather in autumnSeptember to November
High 14°CLow 8°CRain 60%
Autumn in Grafton has typical daily highs of about 14°C and lows of about 8°C, with a 60% chance of rain on a given day.
When is the rainy season in Grafton?
Grafton has no sharply defined rainy season: the chance of rain on a given day runs from 57% in February, the driest month, to 62% in April, the wettest.
What time of year is Grafton windiest?
Winds in Grafton are highest in February, averaging 4.2 m/s (15 km/h), and lightest in August, at 2.9 m/s (10 km/h). The prevailing wind is from the SW.
What is the average temperature in Grafton year round?
The average temperature in Grafton over the whole year is 9°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -6°C.