Climate Comfort Score
97/100
Excellent
NOAA 1991–2020 normals 63°F annual avg Public-domain federal data
New Melones Dam HQ, CA Climate
Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →
- 63°F
- Avg annual temp
- 97/100
- Comfort score
- 29.8"
- Annual precip
- 294d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for New Melones Dam HQ
New Melones Dam HQ, California averages 63°F a year and scores 97/100 on the comfort index - excellent, milder than 98% of U.S. cities.
- 63°F
- yearly average temperature, NOAA normal
- 97/100
- comfort score, milder than 98% of U.S. cities
- 29.8"
- yearly precipitation total
- 294 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
63°F (17°C)
Avg High
76°F
Avg Low
50°F
Annual Precip
29.8"
Annual Snow
0.2"
Comfort Score
97/100
Excellent
Avg Annual Temperature
63°F
30-year mean (NOAA NCEI)
Annual Precipitation
29.8"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (New Melones Dam HQ) 97.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the New Melones Dam HQ area.
How New Melones Dam HQ compares to every U.S. city
New Melones Dam HQ's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
97 Top 2% higher than 98% 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 New Melones Dam HQ
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for New Melones Dam HQ 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 | 57°F (14°C) | 38°F (3°C) | 48°F (9°C) | 5.8" | 0.0" | 3.9 | 0.0 |
| February | 61°F (16°C) | 40°F (4°C) | 50°F (10°C) | 4.8" | 0.0" | 2.2 | 0.0 |
| March | 65°F (18°C) | 44°F (6°C) | 54°F (12°C) | 4.8" | 0.2" | 0.5 | 0.0 |
| April | 70°F (21°C) | 46°F (8°C) | 58°F (14°C) | 2.6" | 0.0" | 0.2 | 0.4 |
| May | 79°F (26°C) | 52°F (11°C) | 66°F (19°C) | 1.5" | 0.0" | 0.1 | 5.2 |
| June | 89°F (32°C) | 59°F (15°C) | 74°F (23°C) | 0.4" | 0.0" | 0.0 | 15.9 |
| July | 97°F (36°C) | 65°F (19°C) | 81°F (27°C) | 0.0" | 0.0" | 0.0 | 27.8 |
| August | 96°F (36°C) | 65°F (18°C) | 80°F (27°C) | 0.0" | 0.0" | 0.0 | 27.2 |
| September | 91°F (33°C) | 60°F (16°C) | 76°F (24°C) | 0.2" | 0.0" | 0.0 | 18.1 |
| October | 80°F (27°C) | 52°F (11°C) | 66°F (19°C) | 1.5" | 0.0" | 0.0 | 3.7 |
| November | 66°F (19°C) | 44°F (7°C) | 55°F (13°C) | 2.9" | 0.0" | 1.1 | 0.0 |
| December | 57°F (14°C) | 38°F (3°C) | 48°F (9°C) | 5.2" | 0.0" | 5.1 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 5.8"
13.3 days with precipitation
February 4.8"
11.3 days with precipitation
March 4.8"
Snow: 0.2"
10.9 days with precipitation
April 2.6"
6.9 days with precipitation
May 1.5"
4.8 days with precipitation
June 0.4"
1.9 days with precipitation
July 0.0"
0.3 days with precipitation
August 0.0"
0.4 days with precipitation
September 0.2"
1.2 days with precipitation
October 1.5"
4.0 days with precipitation
November 2.9"
8.1 days with precipitation
December 5.2"
12.0 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
December 11
50% probability date
Last Spring Freeze
February 20
50% probability date
Growing Season
294 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
2,547
Higher = more heating needed
Cooling Degree Days
1,842
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
What New Melones Dam HQ's climate means for you
New Melones Dam HQ runs 63°F a year - peaking in July, coldest in December.
- Gardeners get about 294 frost-free days, with the last spring freeze near February 20 - plan the planting calendar around it, not the regional average.
- Energy bills track 2,547 heating and 1,842 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: New Melones Dam HQ, CA
An annual average temperature of 63°F, ranging from a mean daily high of 76°F to a mean daily low of 50°F is what the NOAA 1991–2020 climate normals report for New Melones Dam HQ, California. July is typically the warmest month of the year, while December is the coldest. That baseline comes from station USC00046174 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. New Melones Dam HQ receives roughly 29.8 inches of precipitation each year, with negligible snowfall. The frost-free season averages 294 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near February 20 and the first fall freeze near December 11. For energy use, 2,547 heating degree days and 1,842 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, New Melones Dam HQ scores 97/100 (Excellent), 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 July-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 New Melones Dam HQ, CA? ▼
The average annual temperature in New Melones Dam HQ, California is 63°F. The warmest month averages 97°F (36°C) and the coldest averages 38°F (3°C).
How much rain does New Melones Dam HQ get? ▼
New Melones Dam HQ receives 29.8 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 New Melones Dam HQ? ▼
New Melones Dam HQ has a climate comfort score of 97/100 (Excellent), milder than 98% of U.S. cities in the PlainClimate database.
When is the growing season in New Melones Dam HQ? ▼
New Melones Dam HQ has approximately 294 frost-free days per year, with the last spring freeze around February 20 and the first fall freeze around December 11.
How much energy does heating and cooling require in New Melones Dam HQ? ▼
New Melones Dam HQ has 2,547 heating degree days and 1,842 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 New Melones Dam HQ climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00046174 near New Melones Dam HQ.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00046174. 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.