Climate Comfort Score
93/100
Excellent
NOAA 1991–2020 normals 60°F annual avg Public-domain federal data
Ben Lomond, CA Climate
Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →
- 60°F
- Avg annual temp
- 93/100
- Comfort score
- 49.6"
- Annual precip
- 231d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Ben Lomond
Ben Lomond, California averages 60°F a year and scores 93/100 on the comfort index - excellent, milder than 95% of U.S. cities.
- 60°F
- annual average temperature (NOAA normal)
- 93/100
- comfort score, milder than 95% of U.S. cities
- 49.6"
- annual precipitation
- 231 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
60°F (16°C)
Avg High
77°F
Avg Low
44°F
Annual Precip
49.6"
Annual Snow
0.1"
Comfort Score
93/100
Excellent
Avg Annual Temperature
60°F
30-year mean (NOAA NCEI)
Annual Precipitation
49.6"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Ben Lomond) 93.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the Ben Lomond area.
How Ben Lomond compares to every U.S. city
Ben Lomond'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 Ben Lomond
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Ben Lomond 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 | 65°F (18°C) | 37°F (3°C) | 51°F (11°C) | 10.4" | 0.0" | 9.3 | 0.0 |
| February | 67°F (19°C) | 39°F (4°C) | 53°F (12°C) | 9.7" | 0.1" | 5.7 | 0.0 |
| March | 71°F (21°C) | 41°F (5°C) | 56°F (13°C) | 7.0" | 0.0" | 3.7 | 0.5 |
| April | 75°F (24°C) | 42°F (5°C) | 59°F (15°C) | 3.3" | 0.0" | 1.1 | 1.9 |
| May | 80°F (26°C) | 46°F (8°C) | 63°F (17°C) | 1.2" | 0.0" | 0.1 | 3.8 |
| June | 86°F (30°C) | 49°F (9°C) | 67°F (19°C) | 0.2" | 0.0" | 0.1 | 7.5 |
| July | 88°F (31°C) | 51°F (11°C) | 70°F (21°C) | 0.0" | 0.0" | 0.0 | 9.7 |
| August | 90°F (32°C) | 51°F (11°C) | 70°F (21°C) | 0.0" | 0.0" | 0.0 | 11.6 |
| September | 89°F (31°C) | 49°F (9°C) | 69°F (20°C) | 0.1" | 0.0" | 0.1 | 11.4 |
| October | 83°F (28°C) | 44°F (7°C) | 64°F (18°C) | 2.2" | 0.0" | 0.5 | 6.6 |
| November | 71°F (22°C) | 40°F (4°C) | 55°F (13°C) | 5.0" | 0.0" | 4.9 | 0.6 |
| December | 64°F (18°C) | 37°F (3°C) | 50°F (10°C) | 10.4" | 0.0" | 11.1 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 10.4"
12.2 days with precipitation
February 9.7"
Snow: 0.1"
12.1 days with precipitation
March 7.0"
10.0 days with precipitation
April 3.3"
6.8 days with precipitation
May 1.2"
4.1 days with precipitation
June 0.2"
1.5 days with precipitation
July 0.0"
0.3 days with precipitation
August 0.0"
0.6 days with precipitation
September 0.1"
1.1 days with precipitation
October 2.2"
3.6 days with precipitation
November 5.0"
7.6 days with precipitation
December 10.4"
12.3 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
November 11
50% probability date
Last Spring Freeze
March 25
50% probability date
Growing Season
231 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
2,286
Higher = more heating needed
Cooling Degree Days
641
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
What Ben Lomond's climate means for you
Ben Lomond runs 60°F a year - peaking in August, coldest in December.
- Gardeners get about 231 frost-free days, with the last spring freeze near March 25 - plan the planting calendar around it, not the regional average.
- Energy bills track 2,286 heating and 641 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: Ben Lomond, CA
In Ben Lomond, California, the NOAA 1991–2020 climate normals put the annual average temperature at 60°F, ranging from a mean daily high of 77°F to a mean daily low of 44°F. August is typically the warmest month of the year, while December is the coldest. As thirty-year averages computed from station USC00040673, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Beyond temperature, Ben Lomond averages 49.6 inches of precipitation annually, with negligible snowfall - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 231 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 25 and the first fall freeze near November 11. Turning to energy use, 2,286 heating degree days and 641 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Ben Lomond 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 December-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 Ben Lomond, CA? ▼
The average annual temperature in Ben Lomond, California is 60°F. The warmest month averages 90°F (32°C) and the coldest averages 37°F (3°C).
How much rain does Ben Lomond get? ▼
Ben Lomond receives 49.6 inches of precipitation annually, including 0.1 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Ben Lomond? ▼
Ben Lomond 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 Ben Lomond? ▼
Ben Lomond has approximately 231 frost-free days per year, with the last spring freeze around March 25 and the first fall freeze around November 11.
How much energy does heating and cooling require in Ben Lomond? ▼
Ben Lomond has 2,286 heating degree days and 641 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 Ben Lomond climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00040673 near Ben Lomond.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00040673. 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.