Annual mean 11°C · wettest around December · prevailing wind W
Warmest
27.2 °C
Coldest
0.5 °C
Wettest
22%
Windiest
5.0 m/s
Prevailing
W
4.0 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 11°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -3°C. Grafton has no sharply defined rainy season: the chance of rain on a given day runs from 12% in June, the driest month, to 20% in December, the wettest. Winds in Grafton are highest in March, averaging 3.8 m/s (14 km/h), and lightest in August, at 2.4 m/s (9 km/h). The prevailing wind is from the W. The clearest skies in Grafton come in November, when the sky is typically 41% covered; April is the cloudiest month, at 52%.
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
1°C
-3°C
-5°C
15%
52%
3.5 m/s
0
0
5
February
3°C
-2°C
-3°C
16%
48%
3.4 m/s
1
0
10
March
7°C
0°C
1°C
15%
48%
3.8 m/s
3
0
23
April
12°C
6°C
7°C
18%
52%
3.7 m/s
15
1
50
May
18°C
11°C
15°C
15%
52%
3.2 m/s
47
10
71
June
24°C
17°C
23°C
12%
45%
2.8 m/s
72
32
52
July
27°C
20°C
27°C
13%
42%
2.6 m/s
48
60
20
August
26°C
19°C
26°C
12%
41%
2.4 m/s
60
52
28
September
22°C
15°C
21°C
14%
46%
2.5 m/s
71
23
61
October
16°C
9°C
13°C
15%
49%
2.7 m/s
43
4
72
November
9°C
3°C
4°C
16%
41%
3.2 m/s
10
0
33
December
3°C
-1°C
-2°C
20%
48%
3.2 m/s
0
0
11
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 1°C at their warmest in January, its coolest month, and 27°C in July, its warmest; the coolest hours of the day run from -3°C to 20°C through the year, and the average temperature over the year is 11°C around the clock. Rain is most likely around December and least likely around June. 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 2°CLow -2°CRain 17%
Winter in Grafton has typical daily highs of about 2°C and lows of about -2°C, with a 17% chance of rain on a given day.
Grafton weather in springMarch to May
High 12°CLow 6°CRain 16%
Spring in Grafton has typical daily highs of about 12°C and lows of about 6°C, with a 16% chance of rain on a given day.
Grafton weather in summerJune to August
High 26°CLow 18°CRain 12%
Summer in Grafton has typical daily highs of about 26°C and lows of about 18°C, with a 12% chance of rain on a given day.
Grafton weather in autumnSeptember to November
High 16°CLow 9°CRain 15%
Autumn in Grafton has typical daily highs of about 16°C and lows of about 9°C, with a 15% 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 12% in June, the driest month, to 20% in December, the wettest.
What time of year is Grafton windiest?
Winds in Grafton are highest in March, averaging 3.8 m/s (14 km/h), and lightest in August, at 2.4 m/s (9 km/h). The prevailing wind is from the W.
What is the average temperature in Grafton year round?
The average temperature in Grafton over the whole year is 11°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -3°C.