Climate Comfort Score
75/100
Good
NOAA 1991–2020 normals 74°F annual avg 2 stations
- 74°F
- Avg annual temp
- 75/100
- Comfort score
- 3.6"
- Annual precip
- 350d
- Growing season
30-year climate normals from 2 weather stations (1991-2020).
The climate verdict for Blythe
Blythe, California averages 74°F a year and scores 75/100 on the comfort index - good, milder than 72% of U.S. cities.
- 74°F
- annual average temperature (NOAA normal)
- 75/100
- comfort score, milder than 72% of U.S. cities
- 3.6"
- yearly precipitation total
- 350 days
- frost-free days per growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
74°F (24°C)
Avg High
88°F
Avg Low
61°F
Annual Precip
3.6"
Comfort Score
75/100
Good
Avg Annual Temperature
74°F
30-year mean (NOAA NCEI)
Annual Precipitation
3.6"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Blythe) 75.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Blythe area.
How Blythe compares to every U.S. city
Blythe's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
75 Top 28% higher than 72% of 6,915 US cities
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 Blythe
MethodologyZooming out from Blythe's own normal, the chart below shows how the U.S. land temperature anomaly has tracked the global mean since 1900 - the most recent decade sits warmer than the 30-year mean shown here.
- 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 68°F (20°C) | 43°F (6°C) | 56°F (13°C) | 0.5" | N/A | 1.0 | 0.0 |
| February | 72°F (22°C) | 46°F (8°C) | 59°F (15°C) | 0.6" | N/A | 0.5 | 0.0 |
| March | 80°F (26°C) | 52°F (11°C) | 66°F (19°C) | 0.5" | N/A | 0.1 | 4.1 |
| April | 87°F (31°C) | 57°F (14°C) | 72°F (22°C) | 0.1" | N/A | 0.0 | 12.2 |
| May | 96°F (35°C) | 65°F (18°C) | 80°F (27°C) | 0.1" | N/A | 0.0 | 24.1 |
| June | 105°F (41°C) | 73°F (23°C) | 89°F (32°C) | 0.0" | N/A | 0.0 | 29.3 |
| July | 109°F (43°C) | 82°F (28°C) | 95°F (35°C) | 0.3" | N/A | 0.0 | 30.9 |
| August | 108°F (42°C) | 82°F (28°C) | 95°F (35°C) | 0.4" | N/A | 0.0 | 30.9 |
| September | 102°F (39°C) | 74°F (23°C) | 88°F (31°C) | 0.3" | N/A | 0.0 | 28.8 |
| October | 90°F (32°C) | 61°F (16°C) | 75°F (24°C) | 0.2" | N/A | 0.0 | 17.7 |
| November | 77°F (25°C) | 49°F (10°C) | 63°F (17°C) | 0.2" | N/A | 0.2 | 1.3 |
| December | 66°F (19°C) | 42°F (5°C) | 54°F (12°C) | 0.4" | N/A | 1.3 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 0.5"
2.6 days with precipitation
February 0.6"
2.6 days with precipitation
March 0.5"
2.3 days with precipitation
April 0.1"
0.8 days with precipitation
May 0.1"
0.5 days with precipitation
June 0.0"
0.2 days with precipitation
July 0.3"
1.5 days with precipitation
August 0.4"
1.5 days with precipitation
September 0.3"
1.6 days with precipitation
October 0.2"
1.2 days with precipitation
November 0.2"
1.2 days with precipitation
December 0.4"
1.9 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
December 21
50% probability date
Last Spring Freeze
January 5
50% probability date
Growing Season
350 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,011
Higher = more heating needed
Cooling Degree Days
4,460
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Humidity & Wind
Monthly averages from hourly observations
| Month | Humidity | Wind (mph) | Clear Sky % | Overcast % |
|---|---|---|---|---|
| January | 37% | 6.5 | 72% | 9% |
| February | 35% | 7.2 | 70% | 9% |
| March | 26% | 8.4 | 80% | 5% |
| April | 21% | 9.0 | 82% | 2% |
| May | 20% | 8.9 | 85% | 2% |
| June | 20% | 9.2 | 87% | 1% |
| July | 27% | 9.2 | 76% | 3% |
| August | 31% | 7.8 | 78% | 3% |
| September | 24% | 6.6 | 89% | 1% |
| October | 27% | 6.4 | 84% | 3% |
| November | 32% | 6.5 | 79% | 6% |
| December | 37% | 6.2 | 73% | 10% |
What Blythe's climate means for you
Blythe runs 74°F a year - peaking in July, coldest in December.
- Gardeners get about 350 frost-free days, with the last spring freeze near January 5 - plan the planting calendar around it, not the regional average.
- Energy bills track 1,011 heating and 4,460 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: Blythe, CA
Blythe, California runs an annual average of 74°F, ranging from a mean daily high of 88°F to a mean daily low of 61°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while December is the coldest. Drawn from 2 weather stations, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.
Blythe averages 3.6 inches of precipitation a year, with seasonal snowfall possible, and that matters as much to daily life here as temperature does. The frost-free season averages 350 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near January 5 and the first fall freeze near December 21. As for energy demand, 1,011 heating degree days and 4,460 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Blythe scores 75/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, July-driven heat at the peak of summer, and December-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.
Frequently Asked Questions
What is the average temperature in Blythe, CA? ▼
The average annual temperature in Blythe, California is 74°F. The warmest month averages 109°F (43°C) and the coldest averages 42°F (5°C).
How much rain does Blythe get? ▼
Blythe receives 3.6 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Blythe? ▼
Blythe has a climate comfort score of 75/100 (Good), milder than 72% of U.S. cities in the PlainClimate database.
When is the growing season in Blythe? ▼
Blythe has approximately 350 frost-free days per year, with the last spring freeze around January 5 and the first fall freeze around December 21.
How much energy does heating and cooling require in Blythe? ▼
Blythe has 1,011 heating degree days and 4,460 cooling degree days annually, a cooling-dominated climate. 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 Blythe climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from 2 weather stations near Blythe.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00023158. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
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.