Climate Comfort Score
62/100
Good
2026 data Public-data reference. official source
Richardson GR SP, CA Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991-2020 normals →
30-year climate normals from 1 weather station (1991-2020).
Richardson GR SP, California has an average annual temperature of 56°F and a climate comfort score of 62/100 (Good). Annual precipitation totals 65.4". Based on NOAA 30-year normals (1991–2020).
Avg Temperature
56°F (13°C)
Avg High
67°F
Avg Low
45°F
Annual Precip
65.4"
Annual Snow
0.2"
Comfort Score
62/100
Good
Avg Annual Temperature
56°F
30-year mean (NOAA NCEI)
Annual Precipitation
65.4"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Richardson GR SP) 62.0%
National median (≈55)
PlainClimate composite — temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Richardson GR SP area.
Warming context for Richardson GR SP
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Richardson GR SP captures average conditions across the spread shown — the most recent decade is warmer than the 30-year mean.
- 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 | 50°F (10°C) | 39°F (4°C) | 44°F (7°C) | 12.7" | 0.0" | 5.4 | 0.0 |
| February | 53°F (11°C) | 40°F (4°C) | 46°F (8°C) | 11.3" | 0.0" | 3.4 | 0.0 |
| March | 59°F (15°C) | 41°F (5°C) | 50°F (10°C) | 9.7" | 0.0" | 2.1 | 0.0 |
| April | 64°F (18°C) | 42°F (6°C) | 53°F (12°C) | 5.1" | 0.0" | 0.9 | 0.0 |
| May | 72°F (22°C) | 47°F (8°C) | 59°F (15°C) | 1.9" | 0.0" | 0.8 | 1.1 |
| June | 77°F (25°C) | 51°F (11°C) | 64°F (18°C) | 0.8" | 0.0" | 0.0 | 2.4 |
| July | 86°F (30°C) | 54°F (12°C) | 70°F (21°C) | 0.0" | 0.0" | 0.1 | 9.5 |
| August | 87°F (30°C) | 54°F (12°C) | 70°F (21°C) | 0.0" | 0.0" | 0.0 | 9.4 |
| September | 83°F (28°C) | 50°F (10°C) | 67°F (19°C) | 0.4" | 0.0" | 0.0 | 7.3 |
| October | 70°F (21°C) | 45°F (7°C) | 57°F (14°C) | 2.7" | 0.0" | 0.0 | 0.5 |
| November | 55°F (13°C) | 41°F (5°C) | 48°F (9°C) | 6.7" | 0.0" | 2.7 | 0.0 |
| December | 49°F (9°C) | 38°F (4°C) | 44°F (7°C) | 14.0" | 0.2" | 6.3 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 12.7"
16.6 days with precipitation
February 11.3"
14.0 days with precipitation
March 9.7"
11.5 days with precipitation
April 5.1"
9.0 days with precipitation
May 1.9"
5.6 days with precipitation
June 0.8"
2.1 days with precipitation
July 0.0"
0.2 days with precipitation
August 0.0"
0.4 days with precipitation
September 0.4"
0.7 days with precipitation
October 2.7"
4.3 days with precipitation
November 6.7"
12.0 days with precipitation
December 14.0"
Snow: 0.2"
15.1 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
December 1
50% probability date
Last Spring Freeze
March 10
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
3,734
Higher = more heating needed
Cooling Degree Days
494
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
Related Data
PlainEnviro
EPA environmental data — pollution, water quality, and environmental health by location
PlainCarbon
Carbon emissions data — greenhouse gas reporting and facility-level CO2 data
PlainHazard
Natural disaster data — weather-related hazards, FEMA declarations, and risk profiles
PlainAirData
EPA air quality data — AQI readings, pollutant levels, and air quality trends
Climate Guides
Climate Insight: Richardson GR SP, CA
The NOAA 1991–2020 climate normals describe Richardson GR SP, California as a location with an annual average temperature of 56°F, ranging from a mean daily high of 67°F to a mean daily low of 45°F. August is typically the warmest month of the year, while December is the coldest. These thirty-year averages, computed from station USC00047404, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Richardson GR SP receives roughly 65.4 inches of precipitation each year, with seasonal snowfall possible. Growing-season length varies with elevation and microclimate, with the last spring freeze near March 10 and the first fall freeze near December 1. For energy use, 3,734 heating degree days and 494 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Richardson GR SP scores 62/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows — shoulder seasons for mild highs and lows, peak summer for August-driven heat, or deep winter for December-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.
Frequently Asked Questions
What is the average temperature in Richardson GR SP, CA? ▼
The average annual temperature in Richardson GR SP, California is 56°F. The warmest month averages 87°F (30°C) and the coldest averages 38°F (4°C).
How much rain does Richardson GR SP get? ▼
Richardson GR SP receives 65.4 inches of precipitation annually, including 0.2 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Richardson GR SP? ▼
Richardson GR SP has a climate comfort score of 62/100 (Good). This score considers temperature mildness, humidity, precipitation, and extreme weather frequency.
When is the growing season in Richardson GR SP? ▼
Growing season data is not available for Richardson GR SP.
How much energy does heating and cooling require in Richardson GR SP? ▼
Richardson GR SP has 3,734 heating degree days and 494 cooling degree days annually. Higher heating degree days indicate greater winter energy demand, while higher cooling degree days indicate greater summer cooling needs.
Where does this Richardson GR SP climate data come from? ▼
All climate data comes from NOAA U.S. Climate Normals v1.0.1, covering the 30-year period from 1991 to 2020. Data is collected from weather station USC00047404. These 30-year averages are the standard reference for typical weather conditions.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00047404. 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
