Hesperia, CA Weather

According to the Köppen climate classification, Hesperia has a cold desert climate, BWk on climate maps.

Winter days are cool with high temperatures averaging around 60 °F (16 °C), but temperatures get cold overnight, as the average low temperatures for December and January are around freezing. It is also the area’s wet season. The rain shadow caused by the mountain ranges to the south and west shields Hesperia from the majority of winter rainfall, but heavy rain is not uncommon. Winter snowfall is sporadic – the average yearly snowfall amount is 4.4 inches.

Summer days are very hot, with high temperatures typically nearing 100 °F (38 °C). This excessive heat is typical of the Mojave Desert as a whole. The large diurnal temperature variation, though, provides substantial relief overnight. In the later part of the season, sporadic summer thunderstorms associated with the North American monsoon can bring power outages and local flash floods.

Average Temperature
Jan
54 °F
12 °C
Feb
46 °F
8 °C
Mar
57 °F
14 °C
Apr
66 °F
19 °C
May
66 °F
19 °C
Jun
81 °F
27 °C
Jul
86 °F
30 °C
Aug
88 °F
31 °C
Sep
80 °F
27 °C
Oct
72 °F
22 °C
Nov
69 °F
21 °C
Dec
50 °F
10 °C
Humidity
Jan
55%
Feb
59%
Mar
64%
Apr
40%
May
59%
Jun
39%
Jul
31%
Aug
25%
Sep
39%
Oct
24%
Nov
23%
Dec
66%
Rain
Jan
28mm
Feb
63mm
Mar
27mm
Apr
4mm
May
18mm
Jun
5mm
Jul
7mm
Aug
4mm
Sep
10mm
Oct
3mm
Nov
29mm
Dec
32mm
Clouds
Jan
31%
Feb
37%
Mar
33%
Apr
15%
May
19%
Jun
5%
Jul
2%
Aug
1%
Sep
4%
Oct
1%
Nov
4%
Dec
44%
Air quality US AQI
Jan
35
Feb
41
Mar
38
Apr
50
May
47
Jun
63
Jul
65
Aug
67
Sep
55
Oct
44
Nov
43
Dec
32
Sun
Jan
3UVI
Feb
5UVI
Mar
7UVI
Apr
8UVI
May
8UVI
Jun
10UVI
Jul
11UVI
Aug
10UVI
Sep
9UVI
Oct
6UVI
Nov
4UVI
Dec
3UVI