Climate Comfort Score
47/100
Moderate
NOAA 1991–2020 normals 44°F annual avg Public-domain federal data
Donner Mem SP, CA Climate
Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →
- 44°F
- Avg annual temp
- 47/100
- Comfort score
- 38.8"
- Annual precip
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Donner Mem SP
Donner Mem SP, California averages 44°F a year and scores 47/100 on the comfort index - moderate, milder than 17% of U.S. cities.
- 44°F
- average temperature, NOAA 1991-2020 normal
- 47/100
- comfort score, milder than 17% of U.S. cities
- 38.8"
- annual precipitation · 183" snow
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
44°F (7°C)
Avg High
59°F
Avg Low
29°F
Annual Precip
38.8"
Annual Snow
182.9"
Comfort Score
47/100
Moderate
Avg Annual Temperature
44°F
30-year mean (NOAA NCEI)
Annual Precipitation
38.8"
Plus 182.9" of snow
Comfort score vs national 100-point ceiling (Donner Mem SP) 47.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Donner Mem SP area.
How Donner Mem SP compares to every U.S. city
Donner Mem SP's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
47 Top 83% higher than 17% 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 Donner Mem SP
MethodologyZooming out from Donner Mem SP'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 | 41°F (5°C) | 17°F (-8°C) | 29°F (-2°C) | 6.7" | 40.0" | 30.5 | 0.0 |
| February | 43°F (6°C) | 18°F (-8°C) | 31°F (-1°C) | 6.6" | 37.7" | 27.2 | 0.0 |
| March | 48°F (9°C) | 22°F (-6°C) | 35°F (2°C) | 6.2" | 32.9" | 29.7 | 0.0 |
| April | 54°F (12°C) | 26°F (-3°C) | 40°F (4°C) | 2.7" | 15.4" | 26.8 | 0.0 |
| May | 63°F (17°C) | 33°F (1°C) | 48°F (9°C) | 2.1" | 3.4" | 15.5 | 0.0 |
| June | 73°F (23°C) | 38°F (3°C) | 56°F (13°C) | 0.7" | 0.5" | 5.2 | 0.5 |
| July | 82°F (28°C) | 44°F (6°C) | 63°F (17°C) | 0.3" | 0.0" | 0.6 | 3.7 |
| August | 81°F (27°C) | 42°F (6°C) | 61°F (16°C) | 0.4" | 0.0" | 0.6 | 2.1 |
| September | 75°F (24°C) | 36°F (2°C) | 55°F (13°C) | 0.5" | 0.0" | 7.2 | 0.0 |
| October | 63°F (17°C) | 29°F (-2°C) | 46°F (8°C) | 2.2" | 2.4" | 24.9 | 0.0 |
| November | 49°F (10°C) | 23°F (-5°C) | 36°F (2°C) | 3.6" | 10.1" | 28.3 | 0.0 |
| December | 39°F (4°C) | 17°F (-8°C) | 28°F (-2°C) | 6.9" | 40.5" | 30.0 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 6.7"
Snow: 40.0"
10.7 days with precipitation
February 6.6"
Snow: 37.7"
10.3 days with precipitation
March 6.2"
Snow: 32.9"
9.7 days with precipitation
April 2.7"
Snow: 15.4"
7.4 days with precipitation
May 2.1"
Snow: 3.4"
6.6 days with precipitation
June 0.7"
Snow: 0.5"
3.2 days with precipitation
July 0.3"
1.3 days with precipitation
August 0.4"
1.6 days with precipitation
September 0.5"
2.4 days with precipitation
October 2.2"
Snow: 2.4"
4.3 days with precipitation
November 3.6"
Snow: 10.1"
6.5 days with precipitation
December 6.9"
Snow: 40.5"
10.5 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
N/A
50% probability date
Last Spring Freeze
N/A
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,707
Higher = more heating needed
Cooling Degree Days
60
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
What Donner Mem SP's climate means for you
Donner Mem SP runs 44°F a year - peaking in July, coldest in December.
- Energy bills track 7,707 heating and 60 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: Donner Mem SP, CA
Based on station USC00042467 feeding NOAA's 1991–2020 climate normals, Donner Mem SP, California averages 44°F a year, ranging from a mean daily high of 59°F to a mean daily low of 29°F. July is typically the warmest month of the year, while December is the coldest. Because these figures are thirty-year averages rather than any single year's readings, they describe the typical month, not a forecast for it.
Anyone planning to live, garden, or travel in Donner Mem SP should weigh precipitation alongside temperature: the annual average runs 38.8 inches, with 182.9 inches typically falling as snow. Growing-season length varies with elevation and microclimate. And on the energy front, 7,707 heating degree days and 60 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Donner Mem SP scores 47/100 (Moderate), 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 Donner Mem SP, CA? ▼
The average annual temperature in Donner Mem SP, California is 44°F. The warmest month averages 82°F (28°C) and the coldest averages 17°F (-8°C).
How much rain does Donner Mem SP get? ▼
Donner Mem SP receives 38.8 inches of precipitation annually, including 182.9 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Donner Mem SP? ▼
Donner Mem SP has a climate comfort score of 47/100 (Moderate), milder than 17% of U.S. cities in the PlainClimate database.
When is the growing season in Donner Mem SP? ▼
Growing season data is not available for Donner Mem SP.
How much energy does heating and cooling require in Donner Mem SP? ▼
Donner Mem SP has 7,707 heating degree days and 60 cooling degree days annually, a heating-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 Donner Mem SP climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00042467 near Donner Mem SP.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00042467. 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.