Climate normals · 1970–2000
Simi Valley Climate
Simi Valley is a city in United States (CA) with a population of about 126,788. Its average annual temperature is 17.2°C (63°F), with roughly 423 mm of rain per year.
17.2°C
Avg Temp
423
Precip (mm/yr)
Aug
Hottest Month
Jan
Coldest Month
Simi Valley Climate
Simi Valley has an average annual temperature of 17.2°C (63°F) and receives about 423 mm of precipitation per year. The warmest month is August and the coldest is January. Figures are 1970–2000 climate normals.
17.2°C
Avg Temp
423
Precip (mm/yr)
Aug
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 12° / 54° | 89 mm |
| February | 13° / 55° | 91 mm |
| March | 13° / 56° | 70 mm |
| April | 15° / 59° | 28 mm |
| May | 17° / 63° | 5 mm |
| June | 20° / 68° | 1 mm |
| July | 23° / 73° | 0 mm |
| August | 24° / 75° | 2 mm |
| September | 22° / 72° | 6 mm |
| October | 20° / 67° | 9 mm |
| November | 15° / 60° | 61 mm |
| December | 12° / 54° | 61 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Simi Valley
The most comfortable months to visit Simi Valley are typically June, September and July, when temperatures are mildest and rainfall is relatively low. The hottest month is August (around 32°C high). The coldest is January (near 6°C low). February is usually the wettest month.
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Frequently Asked Questions
The most comfortable months to visit Simi Valley are typically June, September and July, when temperatures are mildest and rainfall is relatively low (1970–2000 climate normals).
Simi Valley, United States has an average annual temperature of 17.2°C and about 423 mm of precipitation per year. The warmest month is August and the coldest is January.
In August, the hottest month, daily highs in Simi Valley average about 32°C (90°F).
Monthly climate normals (1970–2000) sampled from WorldClim 2.1 at ~9 km resolution. Humidity derived from vapor pressure. City coordinates and population from GeoNames.