Annual mean 17°C · wettest around March · prevailing wind W
Warmest
33.6 °C
Coldest
14.3 °C
Wettest
63%
Windiest
3.9 m/s
Prevailing
W
3.2 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
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 Lake Arrowhead over the whole year is 17°C. July is the hottest month, with highs of about 33°C; January is the coldest, with lows of about 5°C. The rainy (wet) season in Lake Arrowhead runs from October to May, peaking in March with a 58% chance of rain on a given day. The dry season is June to September; July is the driest month, at 31%. Winds in Lake Arrowhead are highest in May, averaging 3.2 m/s (12 km/h), and lightest in December, at 1.9 m/s (7 km/h). The prevailing wind is from the W. The clearest skies in Lake Arrowhead come in August, when the sky is typically 11% covered; March is the cloudiest month, at 30%.
Month by month Lake Arrowhead 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
15°C
5°C
11°C
56%
25%
2.1 m/s
31
1
69
February
16°C
6°C
12°C
56%
24%
2.4 m/s
37
3
67
March
17°C
7°C
13°C
58%
30%
2.8 m/s
42
5
68
April
22°C
10°C
17°C
49%
23%
3.1 m/s
62
15
67
May
23°C
13°C
20°C
46%
25%
3.2 m/s
68
24
60
June
29°C
17°C
26°C
32%
15%
3.1 m/s
51
50
29
July
33°C
20°C
31°C
31%
11%
2.9 m/s
23
57
9
August
33°C
19°C
30°C
43%
11%
2.7 m/s
22
58
10
September
30°C
16°C
27°C
33%
16%
2.4 m/s
45
51
24
October
26°C
12°C
22°C
45%
14%
2.2 m/s
61
36
47
November
20°C
8°C
16°C
48%
15%
2.0 m/s
58
11
68
December
16°C
5°C
12°C
55%
22%
1.9 m/s
37
1
72
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 Lake Arrowhead weather by season
Year round, Lake Arrowhead has days of about 15°C at their warmest in January, its coolest month, and 33°C in July, its warmest; the coolest hours of the day run from 5°C to 20°C through the year, and the average temperature over the year is 17°C around the clock. Rain is most likely around March and least likely around July. 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.
Lake Arrowhead weather in winterDecember to February
High 15°CLow 5°CRain 56%
Winter in Lake Arrowhead has typical daily highs of about 15°C and lows of about 5°C, with a 56% chance of rain on a given day.
Lake Arrowhead weather in springMarch to May
High 21°CLow 10°CRain 51%
Spring in Lake Arrowhead has typical daily highs of about 21°C and lows of about 10°C, with a 51% chance of rain on a given day.
Lake Arrowhead weather in summerJune to August
High 32°CLow 19°CRain 35%
Summer in Lake Arrowhead has typical daily highs of about 32°C and lows of about 19°C, with a 35% chance of rain on a given day.
Lake Arrowhead weather in autumnSeptember to November
High 25°CLow 12°CRain 42%
Autumn in Lake Arrowhead has typical daily highs of about 25°C and lows of about 12°C, with a 42% chance of rain on a given day.
When is the rainy season in Lake Arrowhead?
The rainy (wet) season in Lake Arrowhead runs from October to May, peaking in March with a 58% chance of rain on a given day. The dry season is June to September; July is the driest month, at 31%.
What time of year is Lake Arrowhead windiest?
Winds in Lake Arrowhead are highest in May, averaging 3.2 m/s (12 km/h), and lightest in December, at 1.9 m/s (7 km/h). The prevailing wind is from the W.
What is the average temperature in Lake Arrowhead year round?
The average temperature in Lake Arrowhead over the whole year is 17°C. July is the hottest month, with highs of about 33°C; January is the coldest, with lows of about 5°C.