Santa Clarita climate
Santa Clarita (California, United States) has a hot semi-arid climate (Köppen BSh). The average temperature over the year is 19 °C66 °F, and about 341 mm13 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Santa Clarita climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 1763 | 541 | 1152 | 753.0 |
| Feb | 1865 | 542 | 1253 | 732.9 |
| Mar | 2170 | 745 | 1457 | 512.0 |
| Apr | 2475 | 948 | 1661 | 210.8 |
| May | 2984 | 1254 | 2069 | 100.4 |
| Jun | 3494 | 1661 | 2577 | 10.0 |
| Jul | 38100 | 2069 | 2984 | 20.1 |
| Aug | 3799 | 2068 | 2984 | 10.0 |
| Sep | 3494 | 1864 | 2679 | 30.1 |
| Oct | 2883 | 1355 | 2169 | 180.7 |
| Nov | 2271 | 847 | 1559 | 251.0 |
| Dec | 1762 | 540 | 1151 | 612.4 |
| Year | 38100 | 540 | 1966 | 34113 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 62% | 42% | 3.2 | 10:05 |
| Feb | 64% | 42% | 4.0 | 10:54 |
| Mar | 63% | 40% | 5.4 | 11:53 |
| Apr | 58% | 35% | 6.6 | 13:00 |
| May | 51% | 29% | 7.5 | 13:56 |
| Jun | 40% | 21% | 8.1 | 14:26 |
| Jul | 34% | 17% | 7.9 | 14:14 |
| Aug | 32% | 14% | 7.4 | 13:26 |
| Sep | 36% | 17% | 6.3 | 12:20 |
| Oct | 44% | 25% | 4.8 | 11:15 |
| Nov | 52% | 33% | 3.6 | 10:19 |
| Dec | 61% | 42% | 2.9 | 9:52 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Santa Clarita is like
The warmest month is July, with an average high of 38 °C100 °F and a low of 20 °C69 °F. The coldest is December, when highs average 17 °C62 °F and lows 5 °C40 °F. Seasons are strongly marked: the warmest month is on average 18.3 °C32.9 °F warmer than the coldest.
It is dry, with about 341 mm13 in of precipitation per year. The wettest three-month stretch is December–February, which brings 62% of the annual total. Months with less than 20 mm0.8 in on average: May–October. The wettest month is January (75 mm3.0 in), the driest is August (1 mm0.0 in).
Relative humidity ranges from 32% in August to 64% in February. The clearest skies (lowest average cloud amount, 14%) are typical of August. Average wind speed near the ground ranges from 6 km/h (4 mph) in August to 9 km/h (6 mph) in January. Daylight lasts from about 9.9 hours in December to 14.4 hours in June.
Best time to visit Santa Clarita
Based on these averages, the most comfortable months for sightseeing and outdoor activities are March–May and October and November. Average highs then reach 21 °C70 °F to 29 °C84 °F. Precipitation is 10 mm0.4 in to 51 mm2.0 in per month.
The most challenging month is July, which is hot, with average highs of 38 °C100 °F.
Comfort score: months are ranked by how close they come to an ideal. That means an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Santa Clarita
- Winter (December–February) — highs 1762 to 18 °C65 °F, lows around 5 °C40 °F, about 70 mm2.7 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
- Spring (March–May) — highs 2170 to 29 °C84 °F, lows 745 to 12 °C54 °F, about 27 mm1.1 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 3494 to 38 °C100 °F, lows 1661 to 20 °C69 °F, about 1 mm0.0 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Autumn (September–November) — highs 2271 to 34 °C94 °F, lows 847 to 18 °C64 °F, about 15 mm0.6 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
How Santa Clarita compares
The nearest larger place is Los Angeles, about 47 km to the southeast. Compared with it, Santa Clarita has practically the same average temperature. It receives a similar amount of precipitation. The difference is largest in July (3.6 °C6.4 °F warmer).
World Climates covers 222 places in the United States. By annual mean temperature, Santa Clarita is the 49th warmest of them. By annual precipitation, it is the 194th wettest. See all of them on the United States climate page.
Some places in other countries have a very similar pattern of temperature and rainfall. The closest matches are Homs (Syria, BSh), Hamah (Syria, BSh) and Damascus (Syria, BSh).
The same NASA POWER grid cell also contains Valencia (pop. 148,456) and Simi Valley (pop. 126,788). Their long-term averages in this dataset are essentially the same as for Santa Clarita, so they do not have separate pages.
Nearby places
- Climate in Thousand Oaks 37 km · 17 °C62 °F · 402 mm16 in
- Climate in Los Angeles 47 km · 19 °C67 °F · 331 mm13 in
- Climate in Lancaster 50 km · 17 °C63 °F · 286 mm11 in
- Climate in Oxnard 62 km · 17 °C62 °F · 424 mm17 in
- Climate in West Covina 66 km · 19 °C67 °F · 331 mm13 in
- Climate in Long Beach 77 km · 20 °C68 °F · 331 mm13 in
- Climate in Anaheim 85 km · 20 °C67 °F · 331 mm13 in
- Climate in Santa Ana 95 km · 17 °C63 °F · 311 mm12 in
Frequently asked questions
What is the warmest month in Santa Clarita?
July is the warmest month in Santa Clarita. Its average high is 38 °C (100 °F) and its average low is 20 °C (69 °F).
What is the coldest month in Santa Clarita?
December is the coldest month. Its average high is 17 °C (62 °F) and its average low is 5 °C (40 °F).
When does it rain the most in Santa Clarita?
January is the wettest month with about 75 mm (3.0 in) of precipitation. August is the driest with about 1 mm (0.0 in).
What is the best time to visit Santa Clarita?
Judging by long-term averages, the most comfortable months are March–May and October and November.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station. So they can differ from airport records. The gaps are largest on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 771 m, while Santa Clarita lies at about 368 m. Temperatures on this page were therefore adjusted by +2.6 °C4.7 °F using the standard lapse rate of 6.5 °C per 1,000 m.