Historical Weather Records & Monthly Climate for Rosemead, CA

All-Time High
114°F
All-Time Low
25°F
Max Daily Snow
1.5"
Max Daily Rain
6.06"
Max Snow Depth
0

Monthly Climate Averages for Rosemead, CA

Based on 30 years of historical data (1994 - 2023)

MonthHigh (°F)Low (°F)Precip (in)Snow (in)
January66°46°3.21"0
February67°46°3.04"0.04"
March70°48°2.15"0.01"
April74°51°0.9"0.01"
May77°55°0.39"0
June83°60°0.11"0
July89°65°0.07"0
August91°66°0.13"0
September88°64°0.27"0
October81°57°0.64"0
November73°51°0.95"0
December66°45°2.57"0.01"

Historical Weather Extremes for Rosemead, CA

Based on 80+ years of archive data (1940 - 2024)

🔥
Longest Heatwave
35 Days
2006
Consecutive days ≥ 90°F
🧊
Deepest Freeze
0 Days
N/A
Consecutive days ≤ 32°F
🏜️
Longest Drought
175 Days
2003
Consecutive days w/o rain
Wettest Month
19.24"
January 1969
Most rainfall in one month
Snowiest Month
4.3"
February 1940
Most snowfall in one month

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