Climate Comfort Score
92/100
Excellent
NOAA 1991–2020 normals 66°F annual avg Public-domain federal data
Richardson, TX Climate
Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →
- 66°F
- Avg annual temp
- 92/100
- Comfort score
- 41.9"
- Annual precip
- 259d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Richardson
Richardson, Texas averages 66°F a year and scores 92/100 on the comfort index - excellent, milder than 94% of U.S. cities.
- 66°F
- average temperature, NOAA 1991-2020 normal
- 92/100
- comfort score, milder than 94% of U.S. cities
- 41.9"
- precipitation, annual total
- 259 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
66°F (19°C)
Avg High
76°F
Avg Low
56°F
Annual Precip
41.9"
Comfort Score
92/100
Excellent
Avg Annual Temperature
66°F
30-year mean (NOAA NCEI)
Annual Precipitation
41.9"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Richardson) 92.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the Richardson area.
How Richardson compares to every U.S. city
Richardson's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
92 Top 6% higher than 94% 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 Richardson
MethodologyRichardson's NOAA 1991-2020 normal sits inside a longer story: U.S. land temperatures have been tracking (and drifting from) the global mean since 1900, and the chart below shows that spread, with the most recent decade running 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 | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 56°F (13°C) | 36°F (2°C) | 46°F (8°C) | 2.8" | 12.2 | 0.0 |
| February | 60°F (16°C) | 40°F (4°C) | 50°F (10°C) | 3.4" | 7.7 | 0.0 |
| March | 69°F (20°C) | 48°F (9°C) | 58°F (15°C) | 3.6" | 2.3 | 0.0 |
| April | 75°F (24°C) | 55°F (13°C) | 65°F (18°C) | 3.5" | 0.1 | 0.4 |
| May | 83°F (28°C) | 64°F (18°C) | 73°F (23°C) | 5.2" | 0.0 | 4.2 |
| June | 90°F (32°C) | 71°F (22°C) | 81°F (27°C) | 3.8" | 0.0 | 19.8 |
| July | 94°F (35°C) | 75°F (24°C) | 85°F (29°C) | 2.2" | 0.0 | 26.9 |
| August | 95°F (35°C) | 75°F (24°C) | 85°F (29°C) | 2.5" | 0.0 | 26.6 |
| September | 87°F (31°C) | 67°F (19°C) | 77°F (25°C) | 3.3" | 0.0 | 13.3 |
| October | 78°F (25°C) | 56°F (13°C) | 67°F (19°C) | 5.3" | 0.1 | 2.1 |
| November | 66°F (19°C) | 46°F (8°C) | 56°F (13°C) | 3.0" | 2.7 | 0.1 |
| December | 57°F (14°C) | 38°F (3°C) | 48°F (9°C) | 3.4" | 9.7 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 2.8"
8.1 days with precipitation
February 3.4"
8.0 days with precipitation
March 3.6"
8.6 days with precipitation
April 3.5"
7.5 days with precipitation
May 5.2"
9.5 days with precipitation
June 3.8"
6.7 days with precipitation
July 2.2"
4.9 days with precipitation
August 2.5"
5.4 days with precipitation
September 3.3"
5.9 days with precipitation
October 5.3"
7.8 days with precipitation
November 3.0"
6.8 days with precipitation
December 3.4"
7.6 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
November 21
50% probability date
Last Spring Freeze
March 7
50% probability date
Growing Season
259 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
2,294
Higher = more heating needed
Cooling Degree Days
2,612
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Richardson's climate means for you
Richardson runs 66°F a year - peaking in July, coldest in January.
- Gardeners get about 259 frost-free days, with the last spring freeze near March 7 - plan the planting calendar around it, not the regional average.
- Energy bills track 2,294 heating and 2,612 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: Richardson, TX
The NOAA 1991–2020 climate normals describe Richardson, Texas as a location with an annual average temperature of 66°F, ranging from a mean daily high of 76°F to a mean daily low of 56°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00417588, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Beyond temperature, Richardson averages 41.9 inches of precipitation annually, predominantly as rainfall - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 259 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 7 and the first fall freeze near November 21. Turning to energy use, 2,294 heating degree days and 2,612 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 scores 92/100 (Excellent), 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 January-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 Richardson, TX? ▼
The average annual temperature in Richardson, Texas is 66°F. The warmest month averages 95°F (35°C) and the coldest averages 36°F (2°C).
How much rain does Richardson get? ▼
Richardson receives 41.9 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Richardson? ▼
Richardson has a climate comfort score of 92/100 (Excellent), milder than 94% of U.S. cities in the PlainClimate database.
When is the growing season in Richardson? ▼
Richardson has approximately 259 frost-free days per year, with the last spring freeze around March 7 and the first fall freeze around November 21.
How much energy does heating and cooling require in Richardson? ▼
Richardson has 2,294 heating degree days and 2,612 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 Richardson climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00417588 near Richardson.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00417588. 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.