Annual mean 14°C · wettest around May · prevailing wind SW
Warmest
28.7 °C
Coldest
1.5 °C
Wettest
56%
Windiest
5.3 m/s
Prevailing
SW
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 Jasper over the whole year is 14°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -2°C. Jasper has no sharply defined rainy season: the chance of rain on a given day runs from 38% in October, the driest month, to 46% in May, the wettest. Winds in Jasper are highest in March, averaging 3.8 m/s (14 km/h), and lightest in August, at 1.8 m/s (6 km/h). The prevailing wind is from the SW. The clearest skies in Jasper come in September, when the sky is typically 28% covered; January is the cloudiest month, at 58%.
Month by month Jasper 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
2°C
-2°C
-3°C
42%
58%
3.6 m/s
0
0
9
February
6°C
1°C
1°C
44%
49%
3.7 m/s
5
0
24
March
11°C
5°C
6°C
46%
47%
3.8 m/s
14
0
41
April
17°C
9°C
13°C
45%
43%
3.5 m/s
40
5
59
May
23°C
16°C
21°C
46%
43%
3.0 m/s
60
28
49
June
28°C
20°C
28°C
46%
29%
2.5 m/s
43
54
17
July
29°C
22°C
31°C
45%
30%
1.9 m/s
18
57
3
August
28°C
20°C
30°C
42%
32%
1.8 m/s
31
58
8
September
26°C
16°C
26°C
43%
28%
1.9 m/s
49
50
26
October
20°C
11°C
17°C
38%
37%
2.6 m/s
49
16
59
November
11°C
4°C
7°C
41%
39%
3.0 m/s
17
1
45
December
6°C
1°C
1°C
42%
52%
3.4 m/s
3
0
22
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 Jasper weather by season
Year round, Jasper has days of about 2°C at their warmest in January, its coolest month, and 29°C in July, its warmest; the coolest hours of the day run from -2°C to 22°C through the year, and the average temperature over the year is 14°C around the clock. Rain is most likely around May and least likely around October. 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.
Jasper weather in winterDecember to February
High 5°CLow 0°CRain 43%
Winter in Jasper has typical daily highs of about 5°C and lows of about 0°C, with a 43% chance of rain on a given day.
Jasper weather in springMarch to May
High 17°CLow 10°CRain 46%
Spring in Jasper has typical daily highs of about 17°C and lows of about 10°C, with a 46% chance of rain on a given day.
Jasper weather in summerJune to August
High 28°CLow 21°CRain 45%
Summer in Jasper has typical daily highs of about 28°C and lows of about 21°C, with a 45% chance of rain on a given day.
Jasper weather in autumnSeptember to November
High 19°CLow 10°CRain 41%
Autumn in Jasper has typical daily highs of about 19°C and lows of about 10°C, with a 41% chance of rain on a given day.
When is the rainy season in Jasper?
Jasper has no sharply defined rainy season: the chance of rain on a given day runs from 38% in October, the driest month, to 46% in May, the wettest.
What time of year is Jasper windiest?
Winds in Jasper are highest in March, averaging 3.8 m/s (14 km/h), and lightest in August, at 1.8 m/s (6 km/h). The prevailing wind is from the SW.
What is the average temperature in Jasper year round?
The average temperature in Jasper over the whole year is 14°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -2°C.