Climate Comfort Score
93/100
Excellent
NOAA 1991–2020 normals 67°F annual avg Public-domain federal data
Somerville Dam, TX Climate
Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →
- 67°F
- Avg annual temp
- 93/100
- Comfort score
- 41.0"
- Annual precip
- 236d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Somerville Dam
Somerville Dam, Texas averages 67°F a year and scores 93/100 on the comfort index - excellent, milder than 95% of U.S. cities.
- 67°F
- yearly average temperature, NOAA normal
- 93/100
- comfort score, milder than 95% of U.S. cities
- 41.0"
- annual precipitation
- 236 days
- frost-free growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
67°F (19°C)
Avg High
81°F
Avg Low
53°F
Annual Precip
41.0"
Annual Snow
0.0"
Comfort Score
93/100
Excellent
Avg Annual Temperature
67°F
30-year mean (NOAA NCEI)
Annual Precipitation
41.0"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Somerville Dam) 93.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the Somerville Dam area.
How Somerville Dam compares to every U.S. city
Somerville Dam's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
93 Top 5% higher than 95% 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 Somerville Dam
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Somerville Dam 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 | 62°F (17°C) | 35°F (2°C) | 49°F (9°C) | 3.2" | 0.0" | 12.7 | 0.0 |
| February | 66°F (19°C) | 39°F (4°C) | 52°F (11°C) | 2.9" | 0.0" | 6.7 | 0.1 |
| March | 73°F (23°C) | 46°F (8°C) | 59°F (15°C) | 3.2" | 0.0" | 2.7 | 0.1 |
| April | 80°F (27°C) | 53°F (12°C) | 66°F (19°C) | 3.3" | 0.0" | 0.3 | 1.3 |
| May | 87°F (31°C) | 62°F (16°C) | 74°F (23°C) | 4.7" | 0.0" | 0.0 | 11.1 |
| June | 93°F (34°C) | 68°F (20°C) | 81°F (27°C) | 3.9" | 0.0" | 0.0 | 24.5 |
| July | 97°F (36°C) | 70°F (21°C) | 84°F (29°C) | 1.9" | 0.0" | 0.0 | 29.2 |
| August | 98°F (37°C) | 70°F (21°C) | 84°F (29°C) | 2.8" | 0.0" | 0.0 | 29.1 |
| September | 92°F (33°C) | 64°F (18°C) | 78°F (26°C) | 3.4" | 0.0" | 0.0 | 22.0 |
| October | 83°F (29°C) | 53°F (12°C) | 68°F (20°C) | 4.3" | 0.0" | 0.2 | 7.6 |
| November | 72°F (22°C) | 44°F (7°C) | 58°F (15°C) | 3.5" | 0.0" | 3.7 | 0.2 |
| December | 64°F (18°C) | 37°F (3°C) | 51°F (10°C) | 3.6" | 0.0" | 10.6 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 3.2"
9.4 days with precipitation
February 2.9"
9.0 days with precipitation
March 3.2"
8.3 days with precipitation
April 3.3"
7.1 days with precipitation
May 4.7"
8.5 days with precipitation
June 3.9"
7.6 days with precipitation
July 1.9"
5.4 days with precipitation
August 2.8"
5.9 days with precipitation
September 3.4"
7.4 days with precipitation
October 4.3"
7.1 days with precipitation
November 3.5"
8.0 days with precipitation
December 3.6"
9.9 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
November 9
50% probability date
Last Spring Freeze
March 18
50% probability date
Growing Season
236 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,933
Higher = more heating needed
Cooling Degree Days
2,690
Higher = more cooling needed
Warmest Month
August
Coldest Month
January
What Somerville Dam's climate means for you
Somerville Dam runs 67°F a year - peaking in August, coldest in January.
- Gardeners get about 236 frost-free days, with the last spring freeze near March 18 - plan the planting calendar around it, not the regional average.
- Energy bills track 1,933 heating and 2,690 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: Somerville Dam, TX
In Somerville Dam, Texas, the NOAA 1991–2020 climate normals put the annual average temperature at 67°F, ranging from a mean daily high of 81°F to a mean daily low of 53°F. August is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00418446, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Somerville Dam averages 41.0 inches of precipitation a year, with negligible snowfall, and that matters as much to daily life here as temperature does. The frost-free season averages 236 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 18 and the first fall freeze near November 9. As for energy demand, 1,933 heating degree days and 2,690 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Somerville Dam scores 93/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings August-driven heat, and deep winter brings January-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.
Frequently Asked Questions
What is the average temperature in Somerville Dam, TX? ▼
The average annual temperature in Somerville Dam, Texas is 67°F. The warmest month averages 98°F (37°C) and the coldest averages 35°F (2°C).
How much rain does Somerville Dam get? ▼
Somerville Dam receives 41.0 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Somerville Dam? ▼
Somerville Dam has a climate comfort score of 93/100 (Excellent), milder than 95% of U.S. cities in the PlainClimate database.
When is the growing season in Somerville Dam? ▼
Somerville Dam has approximately 236 frost-free days per year, with the last spring freeze around March 18 and the first fall freeze around November 9.
How much energy does heating and cooling require in Somerville Dam? ▼
Somerville Dam has 1,933 heating degree days and 2,690 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 Somerville Dam climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00418446 near Somerville Dam.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00418446. 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.