Hemet, California climate: Normal weather by month, frost dates and records
Hemet's normal year runs from 43°F December nights to 97°F August afternoons, with 11.8 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 19.1°C, December lows of 6°C, August highs of 36°C, 298 mm of precipitation a year.
- NOAA stationHemet
- Station IDUSC00043896
- Location33.74°N 116.89°W
- Elevation1,811 ft (552 m)
- Population92,912
On October 23, the normal high in Hemet is 81°F and the normal low 54°F, and the chance of measurable rain or snow is 6%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Hemet.
- Jan 66° 44°
- Feb 67° 46°
- Mar 71° 47°
- Apr 75° 50°
- May 81° 54°
- Jun 89° 56°
- Jul 96° 65°
- Aug 97° 66°
- Sep 92° 62°
- Oct 82° 55°
- Nov 73° 49°
- Dec 65° 43°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Hemet each month?
August is the warmest month, with normal highs of 97°F; December the coldest, with normal lows of 43°F. The most precipitation falls in February (2.80 in), the least in June (0.05 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 66°F | 44°F | 55.2°F | 2.40 | 6 | <1 | 4 | 10 h 10 min |
| February | 67°F | 46°F | 56.2°F | 2.80 | 6 | <1 | 2 | 11 h |
| March | 71°F | 47°F | 59.0°F | 1.62 | 4 | 1 | 1 | 11 h 50 min |
| April | 75°F | 50°F | 62.4°F | 0.74 | 3 | 3 | <1 | 13 h |
| May | 81°F | 54°F | 67.6°F | 0.44 | 2 | 9 | <1 | 13 h 50 min |
| June | 89°F | 56°F | 72.6°F | 0.05 | <1 | 18 | <1 | 14 h 20 min |
| July | 96°F | 65°F | 80.2°F | 0.19 | 1 | 28 | <1 | 14 h 10 min |
| August | 97°F | 66°F | 81.1°F | 0.19 | 1 | 28 | <1 | 13 h 30 min |
| September | 92°F | 62°F | 77.2°F | 0.37 | 1 | 22 | <1 | 12 h 30 min |
| October | 82°F | 55°F | 68.8°F | 0.51 | 2 | 11 | <1 | 11 h 20 min |
| November | 73°F | 49°F | 60.9°F | 0.73 | 3 | 2 | 1 | 10 h 30 min |
| December | 65°F | 43°F | 54.1°F | 1.71 | 5 | <1 | 5 | 10 h |
| Year (annual) | 80°F | 53°F | 66.3°F | 11.75 | 33 | 121 | 13 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 19°C | 7°C | 12.9°C | 61 mm |
| February | 19°C | 8°C | 13.4°C | 71 mm |
| March | 22°C | 8°C | 15.0°C | 41 mm |
| April | 24°C | 10°C | 16.9°C | 19 mm |
| May | 27°C | 12°C | 19.8°C | 11 mm |
| June | 32°C | 13°C | 22.6°C | 1 mm |
| July | 35°C | 18°C | 26.8°C | 5 mm |
| August | 36°C | 19°C | 27.3°C | 5 mm |
| September | 33°C | 17°C | 25.1°C | 9 mm |
| October | 28°C | 13°C | 20.4°C | 13 mm |
| November | 23°C | 9°C | 16.1°C | 19 mm |
| December | 18°C | 6°C | 12.3°C | 43 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00043896; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Hemet?
Normal highs sit between 65°F and 85°F in January, February, March, April, May, October, November and December. Of those, October has the fewest days with rain (2).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00043896.
When is the last frost in Hemet?
In Hemet, the last spring frost (32°F) comes after January 10 in half of years and after February 25 in one year in ten; the first autumn frost comes before December 23 in half of years and before November 27 in one year in ten. A night at 32°F or colder comes at all in 67% of years here (NOAA).
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- January 101 year in 10 after February 25; 9 in 10 after December 14
- First autumn frost, half of years before
- December 231 year in 10 before November 27; 9 in 10 before January 31
NOAA puts the median frost-free season at 350 days, and the season without a hard freeze (28°F) at 365 days.
A hard freeze (28°F) comes after December 27 in half of springs and before December 25 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Hemet in zone 9b across its 2 ZIP code areas (9b in 92545, the largest). By the map's own method, the average of each year's coldest night over 1991-2020, Hemet's NOAA station is in zone 9b: the coldest night of a typical year reaches 28°F (19 complete years).
Frost dates for every NOAA station in California · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00043896; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
What hardiness zone is each Hemet ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Hemet's 2 ZIP code areas are all in zone 9b. Each ZIP's frost dates are in the frost tool.
Source: USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; ZIP areas in the place: Census Bureau 2020 ZCTA-to-place relationship file. A ZIP area counts when at least a tenth of its land (and 0.5 km²) lies in the place.
How hot and how cold does it get in Hemet?
In a normal year in Hemet, 121 days a year reach 90°F (41 of them 100°F or more), 13 nights fall to 32°F or colder and 33 days bring measurable precipitation.
- Days at 90°F or more
- 121a normal year
- Days at 100°F or more
- 41a normal year
- Nights at 32°F or colder
- 13a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 33a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00043896.
How sunny is Hemet?
Over a year 91% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Hemet, 5.8 kWh per square metre a day. June is the sunniest month (96%) and February the cloudiest (84%). Among the 459 U.S. places of 50,000 or more, that ranks tied 11th (with 9 others) in sunshine.
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 85% | 3.4 |
| February | 84% | 4.3 |
| March | 88% | 5.7 |
| April | 90% | 7.0 |
| May | 93% | 7.9 |
| June | 96% | 8.4 |
| July | 93% | 7.8 |
| August | 94% | 7.3 |
| September | 94% | 6.3 |
| October | 92% | 5.0 |
| November | 89% | 3.7 |
| December | 85% | 3.0 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Hemet need?
A normal year in Hemet brings 1,516 heating degree days, 72% fewer than the median U.S. place (5,373), and 2,009 cooling degree days, 2.2 times the median (908). Two months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 6,049 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 306 | 4 |
| February | 257 | 12 |
| March | 209 | 23 |
| April | 130 | 53 |
| May | 53 | 134 |
| June | 8 | 234 |
| July | 0 | 470 |
| August | 0 | 501 |
| September | 4 | 368 |
| October | 43 | 162 |
| November | 167 | 45 |
| December | 340 | 4 |
| Year (annual) | 1,516 | 2,009 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00043896. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Hemet been warmer than normal lately?
2021 averaged 67.8°F, 1.5°F above the 1991-2020 normal of 66.3°F.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 67.8°F | +1.5°F | 9.57 |
Source: observed years: ACIS, station USC00043896. A year counts only with all twelve months complete.
How does Hemet's climate compare?
Hemet is warmer than 203 of the other 218 places with their own NOAA record in California, and wetter than 56. Across the 7,247 U.S. stations with normals, its annual mean of 66.3°F is warmer than 91%.
In the Köppen classification computed from these normals, Hemet is BSh: hot semi-arid steppe. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Hemet share this climate record?
3 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- East Hemet, CA20,292 people · 3 mi W
- Valle Vista, CA19,263 people · 0 mi NE
- Sage, CA3,474 people · 10 mi S
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Hemet's climate
What is the coldest month in Hemet?
December, with a normal high of 65°F and a normal low of 43°F. The warmest is August (97°F by day, 66°F at night).
Does it snow in Hemet?
Rarely: NOAA's normal is no measurable snow a year.
What is the rainiest month in Hemet?
February, with 2.80 in of precipitation in a normal year; the driest is June with 0.05 in.
What plant hardiness zone is Hemet in?
The USDA's 2023 map puts Hemet in zone 9b across its 2 ZIP code areas (9b in 92545, the largest). By the same method at Hemet's NOAA station, the coldest night of a typical year reaches 28°F (19 years, 1991-2020): zone 9b.
How late can frost come in Hemet?
In half of years the last 32°F night comes after January 10; in one year in ten it comes after February 25. Waiting until February 25 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Hemet in OctoberThis month day by day, its records and recent years
- California climateThe statewide normals and every place in the state
- San Jacinto, CA6 miles from this station, 65.0°F a year
- Idyllwild Fire Dept, CA11 miles from this station, 54.5°F a year
- Palm Springs, CA23 miles from this station, 75.6°F a year
- Palomar Mountain Obsy, CA25 miles from this station, 57.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made