PlainClimate
NOAA 1991–2020 normals 66°F annual avg Public-domain federal data

Hemet, CA Climate

Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →

66°F
Avg annual temp
90/100
Comfort score
11.8"
Annual precip
347d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Hemet

Hemet, California averages 66°F a year and scores 90/100 on the comfort index - excellent, milder than 94% of U.S. cities.

66°F
yearly average temperature, NOAA normal
90/100
comfort score, milder than 94% of U.S. cities
11.8"
yearly precipitation total
347 days
frost-free growing season

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

66°F (19°C)

Avg High

80°F

Avg Low

53°F

Annual Precip

11.8"

Annual Snow

0.0"

Comfort Score

90/100

Excellent

Climate Comfort Score

90/100

Excellent

Avg Annual Temperature

66°F

30-year mean (NOAA NCEI)

Annual Precipitation

11.8"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Hemet) 90.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the Hemet area.

How Hemet compares to every U.S. city

Hemet's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

90 Top 6% higher than 94% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). Below this entry. 50–60: 1,433 US cities (21%). Below this entry. 60–70: 1,357 US cities (20%). Below this entry. 70–80: 1,102 US cities (16%). Below this entry. 80–90: 778 US cities (11%). Below this entry. 90–100: 420 US cities (6%). This entry sits in this band. This city 0 100 every U.S. city, bucketed by value

Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020

Warming context for Hemet

Methodology

Since 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Hemet's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs warmer than the 30-year mean.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • United States land mean (NOAA NCEI) +0.11 °C/decade
  • Global anomaly (NASA GISTEMP) +0.11 °C/decade
  • Paris Agreement thresholds 1.5°C / 2.0°C
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 66°F (19°C) 44°F (7°C) 55°F (13°C)
February 67°F (19°C) 46°F (8°C) 56°F (13°C)
March 71°F (22°C) 47°F (8°C) 59°F (15°C)
April 75°F (24°C) 50°F (10°C) 62°F (17°C)
May 81°F (27°C) 54°F (12°C) 68°F (20°C)
June 89°F (32°C) 56°F (13°C) 73°F (23°C)
July 96°F (35°C) 65°F (18°C) 80°F (27°C)
August 97°F (36°C) 66°F (19°C) 81°F (27°C)
September 92°F (33°C) 62°F (17°C) 77°F (25°C)
October 82°F (28°C) 55°F (13°C) 69°F (20°C)
November 73°F (23°C) 49°F (9°C) 61°F (16°C)
December 65°F (18°C) 43°F (6°C) 54°F (12°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 2.4"

5.9 days with precipitation

February 2.8"

6.0 days with precipitation

March 1.6"

4.4 days with precipitation

April 0.7"

3.0 days with precipitation

May 0.4"

1.9 days with precipitation

June 0.1"

0.3 days with precipitation

July 0.2"

0.8 days with precipitation

August 0.2"

0.8 days with precipitation

September 0.4"

0.9 days with precipitation

October 0.5"

1.7 days with precipitation

November 0.7"

2.8 days with precipitation

December 1.7"

4.5 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

December 23

50% probability date

Last Spring Freeze

January 10

50% probability date

Growing Season

347 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

1,516

Higher = more heating needed

Cooling Degree Days

2,009

Higher = more cooling needed

Warmest Month

August

Coldest Month

December

What Hemet's climate means for you

Hemet runs 66°F a year - peaking in August, coldest in December.

  • Gardeners get about 347 frost-free days, with the last spring freeze near January 10 - plan the planting calendar around it, not the regional average.
  • Energy bills track 1,516 heating and 2,009 cooling degree days a year, higher means the furnace or AC runs more.
  • Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings

These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.

Climate Guides

Climate Insight: Hemet, CA

An annual average temperature of 66°F, ranging from a mean daily high of 80°F to a mean daily low of 53°F is what the NOAA 1991–2020 climate normals report for Hemet, California. August is typically the warmest month of the year, while December is the coldest. That baseline comes from station USC00043896 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Beyond temperature, Hemet averages 11.8 inches of precipitation annually, with negligible snowfall - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 347 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near January 10 and the first fall freeze near December 23. Turning to energy use, 1,516 heating degree days and 2,009 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Hemet scores 90/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Shoulder seasons bring the mildest highs and lows in the monthly tables above, summer brings August-driven heat, and winter brings December-driven cold - use that rhythm for planning. These figures are thirty-year averages rather than forecasts, so a specific year may still run warmer, cooler, wetter, or drier than what's shown.

Frequently Asked Questions

What is the average temperature in Hemet, CA?
The average annual temperature in Hemet, California is 66°F. The warmest month averages 97°F (36°C) and the coldest averages 43°F (6°C).
How much rain does Hemet get?
Hemet receives 11.8 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Hemet?
Hemet has a climate comfort score of 90/100 (Excellent), milder than 94% of U.S. cities in the PlainClimate database.
When is the growing season in Hemet?
Hemet has approximately 347 frost-free days per year, with the last spring freeze around January 10 and the first fall freeze around December 23.
How much energy does heating and cooling require in Hemet?
Hemet has 1,516 heating degree days and 2,009 cooling degree days annually, a fairly balanced heating/cooling split. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Hemet climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00043896 near Hemet.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00043896. For informational purposes only.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial

Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.