Climate Comfort Score
75/100
Good
NOAA 1991–2020 normals 70°F annual avg Public-domain federal data
Twentynine Palms, CA Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →
- 70°F
- Avg annual temp
- 75/100
- Comfort score
- 3.9"
- Annual precip
- 320d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Twentynine Palms
Twentynine Palms, California averages 70°F a year and scores 75/100 on the comfort index - good, milder than 72% of U.S. cities.
- 70°F
- average temperature, NOAA 1991-2020 normal
- 75/100
- comfort score, milder than 72% of U.S. cities
- 3.9"
- precipitation, annual total
- 320 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
70°F (21°C)
Avg High
83°F
Avg Low
58°F
Annual Precip
3.9"
Comfort Score
75/100
Good
Avg Annual Temperature
70°F
30-year mean (NOAA NCEI)
Annual Precipitation
3.9"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Twentynine Palms) 75.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Twentynine Palms area.
How Twentynine Palms compares to every U.S. city
Twentynine Palms'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 Twentynine Palms
MethodologyThe chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Twentynine Palms, the NOAA 1991-2020 normal captures average conditions across that spread - notably, the most recent decade runs warmer than the 30-year mean itself.
- 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 | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 63°F (17°C) | 42°F (5°C) | 53°F (11°C) | 0.5" | 4.8 | 0.0 |
| February | 67°F (20°C) | 44°F (7°C) | 56°F (13°C) | 0.6" | 2.4 | 0.0 |
| March | 74°F (23°C) | 49°F (10°C) | 62°F (17°C) | 0.3" | 0.5 | 1.0 |
| April | 81°F (27°C) | 55°F (13°C) | 68°F (20°C) | 0.1" | 0.0 | 6.5 |
| May | 90°F (32°C) | 63°F (17°C) | 76°F (25°C) | 0.1" | 0.0 | 19.2 |
| June | 99°F (37°C) | 71°F (22°C) | 85°F (30°C) | 0.0" | 0.0 | 27.9 |
| July | 104°F (40°C) | 77°F (25°C) | 91°F (33°C) | 0.4" | 0.0 | 30.9 |
| August | 103°F (39°C) | 76°F (25°C) | 90°F (32°C) | 0.7" | 0.0 | 30.8 |
| September | 97°F (36°C) | 69°F (21°C) | 83°F (28°C) | 0.3" | 0.0 | 26.8 |
| October | 85°F (29°C) | 58°F (14°C) | 71°F (22°C) | 0.1" | 0.2 | 11.3 |
| November | 72°F (22°C) | 47°F (8°C) | 59°F (15°C) | 0.2" | 2.2 | 0.0 |
| December | 62°F (17°C) | 40°F (4°C) | 51°F (11°C) | 0.6" | 6.4 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 0.5"
3.9 days with precipitation
February 0.6"
3.2 days with precipitation
March 0.3"
2.3 days with precipitation
April 0.1"
1.0 days with precipitation
May 0.1"
0.6 days with precipitation
June 0.0"
0.1 days with precipitation
July 0.4"
1.7 days with precipitation
August 0.7"
2.3 days with precipitation
September 0.3"
1.7 days with precipitation
October 0.1"
1.1 days with precipitation
November 0.2"
1.0 days with precipitation
December 0.6"
2.2 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
December 10
50% probability date
Last Spring Freeze
January 24
50% probability date
Growing Season
320 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,511
Higher = more heating needed
Cooling Degree Days
3,482
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
What Twentynine Palms's climate means for you
Twentynine Palms runs 70°F a year - peaking in July, coldest in December.
- Gardeners get about 320 frost-free days, with the last spring freeze near January 24 - plan the planting calendar around it, not the regional average.
- Energy bills track 1,511 heating and 3,482 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: Twentynine Palms, CA
An annual average temperature of 70°F, ranging from a mean daily high of 83°F to a mean daily low of 58°F is what the NOAA 1991–2020 climate normals report for Twentynine Palms, California. July is typically the warmest month of the year, while December is the coldest. That baseline comes from station USC00049099 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.
Twentynine Palms averages 3.9 inches of precipitation a year, predominantly as rainfall, and that matters as much to daily life here as temperature does. The frost-free season averages 320 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near January 24 and the first fall freeze near December 10. As for energy demand, 1,511 heating degree days and 3,482 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Twentynine Palms scores 75/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, July-driven heat peaks in summer, and December-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.
Frequently Asked Questions
What is the average temperature in Twentynine Palms, CA? ▼
The average annual temperature in Twentynine Palms, California is 70°F. The warmest month averages 104°F (40°C) and the coldest averages 40°F (4°C).
How much rain does Twentynine Palms get? ▼
Twentynine Palms receives 3.9 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Twentynine Palms? ▼
Twentynine Palms 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 Twentynine Palms? ▼
Twentynine Palms has approximately 320 frost-free days per year, with the last spring freeze around January 24 and the first fall freeze around December 10.
How much energy does heating and cooling require in Twentynine Palms? ▼
Twentynine Palms has 1,511 heating degree days and 3,482 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 Twentynine Palms climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00049099 near Twentynine Palms.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00049099. 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.