Spring Valley climate
Spring Valley is warmest in July, with average highs of 39 °C, and coldest in December, when nights average 3.1 °C. February is the wettest month (28 mm) and June the driest (1.5 mm). Figures are 1991–2020 climate normals.
Across a full year Spring Valley averages 143 mm of rain, 195 days above 25 °C and 15 days below freezing.
United States · 721 m elevation · population 178,395 · 1991–2020 normals
Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month
- Warmest month July 39 °C
- Coldest month December 3.1 °C
- Driest month June 1 mm
- Wettest month February 28 mm
- Least cloud September 15 % cloud
- Hottest on record June 46 °C
- Coldest on record December -8.3 °C
What to expectSpring Valley through the year
Spring Valley has a clear annual cycle: average daily highs run from 13 °C in December to 39 °C in July, a swing of 25 °C in mean temperature across the year.
Counted across a normal year, 195 days a year reach 25 °C, 147 of them reach 30 °C, 15 nights drop below freezing. The warmest reading in the 1991–2020 record is 46 °C, in June.
Rain is spread fairly evenly through the year, from 1 mm in June to 28 mm in February. There is no dry season to aim for.
Month by month
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| January | 13.8 °C | 21 mm | 41 % |
| February | 16.3 °C | 28 mm | 41 % |
| March | 21.0 °C | 17 mm | 37 % |
| April | 25.5 °C | 7 mm | 31 % |
| May | 30.6 °C | 4 mm | 27 % |
| June | 36.3 °C | 1 mm | 16 % |
| July | 38.9 °C | 7 mm | 22 % |
| August | 37.9 °C | 11 mm | 20 % |
| September | 33.8 °C | 8 mm | 15 % |
| October | 26.6 °C | 8 mm | 22 % |
| November | 18.7 °C | 10 mm | 28 % |
| December | 12.9 °C | 19 mm | 38 % |
Temperature month by month
| Month | Avg high | Avg low | Mean | Record high | Record low | Days above 25 °C | Days above 30 °C | Days below 0 °C |
|---|---|---|---|---|---|---|---|---|
| January | 13.8 °C | 3.4 °C | 8.1 °C | 22.3 °C | -7.3 °C | 0 | 0 | 5 |
| February | 16.3 °C | 4.8 °C | 10.1 °C | 25.6 °C | -5.7 °C | 0 | 0 | 3 |
| March | 21.0 °C | 7.9 °C | 14.2 °C | 32.4 °C | -1.8 °C | 6 | 1 | 0 |
| April | 25.5 °C | 11.3 °C | 18.5 °C | 37.7 °C | 0.7 °C | 17 | 5 | 0 |
| May | 30.6 °C | 16.0 °C | 23.7 °C | 42.0 °C | 4.9 °C | 27 | 18 | 0 |
| June | 36.3 °C | 21.0 °C | 29.4 °C | 45.6 °C | 9.4 °C | 30 | 28 | 0 |
| July | 38.9 °C | 25.1 °C | 32.7 °C | 45.0 °C | 16.5 °C | 31 | 31 | 0 |
| August | 37.9 °C | 24.5 °C | 31.7 °C | 44.2 °C | 14.7 °C | 31 | 31 | 0 |
| September | 33.8 °C | 20.3 °C | 27.3 °C | 44.1 °C | 10.1 °C | 29 | 26 | 0 |
| October | 26.6 °C | 13.8 °C | 20.0 °C | 36.8 °C | -2.1 °C | 21 | 7 | 0 |
| November | 18.7 °C | 7.6 °C | 12.7 °C | 29.9 °C | -4.0 °C | 2 | 0 | 1 |
| December | 12.9 °C | 3.1 °C | 7.5 °C | 22.8 °C | -8.3 °C | 0 | 0 | 6 |
Rain, sun and wind month by month
| Month | Rainfall | Wet days | Daylight | Cloud cover | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 21 mm | 4 | 10.0 h/day | 41 % | 46 % | 13 km/h |
| February | 28 mm | 4 | 11 h/day | 41 % | 44 % | 15 km/h |
| March | 17 mm | 3 | 12 h/day | 37 % | 36 % | 17 km/h |
| April | 7 mm | 2 | 13 h/day | 31 % | 25 % | 20 km/h |
| May | 4 mm | 1 | 14 h/day | 27 % | 21 % | 19 km/h |
| June | 1 mm | 0 | 15 h/day | 16 % | 16 % | 19 km/h |
| July | 7 mm | 2 | 14 h/day | 22 % | 20 % | 16 km/h |
| August | 11 mm | 2 | 14 h/day | 20 % | 23 % | 16 km/h |
| September | 8 mm | 1 | 12 h/day | 15 % | 24 % | 16 km/h |
| October | 8 mm | 1 | 11 h/day | 22 % | 28 % | 14 km/h |
| November | 10 mm | 1 | 10 h/day | 28 % | 35 % | 13 km/h |
| December | 19 mm | 3 | 9.7 h/day | 38 % | 45 % | 12 km/h |
How Spring Valley compares
The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.
| Destination | Summer high | Winter low | Rain per year | Days above 25 °C |
|---|---|---|---|---|
| Spring Valley | 39 °C | 3.1 °C | 143 mm | 195 |
| Las Vegas · United States | 39 °C | 3.6 °C | 142 mm | 201 |
| Henderson · United States | 40 °C | 5.1 °C | 133 mm | 206 |
| San Bernardino · United States | 34 °C | 5.0 °C | 392 mm | 186 |
| Fontana · United States | 34 °C | 4.8 °C | 464 mm | 180 |
| Moreno Valley · United States | 33 °C | 4.6 °C | 391 mm | 174 |
| Lancaster · United States | 35 °C | 4.1 °C | 193 mm | 176 |
Where Spring Valley ranks
| Ranking | Position | Value |
|---|---|---|
| The driest places in North America in October | 5thof 50 | 8.4 mm |
| The driest places in North America year-round | 5thof 50 | 12 mm |
| The warmest places in North America in August | 7thof 50 | 38 °C |
| The warmest places in North America in July | 7thof 50 | 39 °C |
| The driest places in North America in November | 8thof 50 | 9.7 mm |
| The driest places in North America in June | 10thof 50 | 1.5 mm |
Planning a trip? See the best time to visit Spring Valley.
QuestionsCommon questions about Spring Valley’s climate
When is the best time to visit Spring Valley?
That depends on what you want, so the honest answer is a comparison rather than a single month. April, May, October sit closest to 20 °C on average, July is the warmest month and June the driest. The month-by-month table above has the full picture.
How hot does Spring Valley get?
In July, the warmest month, daily highs average 39 °C. About 147 days a year pass 30 °C. The highest value in the 1991–2020 record is 46 °C.
How cold does it get in winter?
Nights average 3.1 °C in December, the coldest month. A normal year has 15 nights below freezing.
Which month is wettest in Spring Valley?
February, averaging 28 mm over 4 days with rain. The driest month is June with 1 mm. The year as a whole averages 143 mm.
Are these figures a forecast?
No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Spring Valley rather than what any particular week will bring. Individual years can differ substantially from the normal.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- Normal period
- 1991–2020
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.