PlainClimate
NOAA 1991–2020 normals 54°F annual avg Public-domain federal data

MT Laguna, CA Climate

Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →

54°F
Avg annual temp
58/100
Comfort score
17.6"
Annual precip
200d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for MT Laguna

MT Laguna, California averages 54°F a year and scores 58/100 on the comfort index - moderate, milder than 38% of U.S. cities.

54°F
annual average temperature (NOAA normal)
58/100
comfort score, milder than 38% of U.S. cities
17.6"
annual precipitation
200 days
growing season, frost-free days

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

54°F (12°C)

Avg High

65°F

Avg Low

44°F

Annual Precip

17.6"

Comfort Score

58/100

Moderate

Climate Comfort Score

58/100

Moderate

Avg Annual Temperature

54°F

30-year mean (NOAA NCEI)

Annual Precipitation

17.6"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (MT Laguna) 58.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the MT Laguna area.

How MT Laguna compares to every U.S. city

MT Laguna's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

58 Top 62% higher than 38% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). Below this entry. 50–60: 1,433 US cities (21%). This entry sits in this band. 60–70: 1,357 US cities (20%). Above this entry. 70–80: 1,102 US cities (16%). Above this entry. 80–90: 778 US cities (11%). Above this entry. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

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 MT Laguna

Methodology

Since 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. MT Laguna's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs warmer than the 30-year mean.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • 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
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 50°F (10°C) 33°F (1°C) 42°F (5°C)
February 50°F (10°C) 34°F (1°C) 42°F (5°C)
March 54°F (12°C) 36°F (2°C) 45°F (7°C)
April 61°F (16°C) 40°F (4°C) 51°F (10°C)
May 68°F (20°C) 46°F (8°C) 57°F (14°C)
June 78°F (25°C) 53°F (12°C) 65°F (19°C)
July 83°F (28°C) 60°F (15°C) 71°F (22°C)
August 82°F (28°C) 58°F (15°C) 70°F (21°C)
September 76°F (25°C) 54°F (12°C) 65°F (18°C)
October 67°F (19°C) 45°F (7°C) 56°F (13°C)
November 57°F (14°C) 38°F (3°C) 47°F (8°C)
December 51°F (10°C) 34°F (1°C) 42°F (6°C)

Monthly Precipitation

Average monthly rainfall

January 2.7"
February 4.8"
March 2.6"
April 0.9"
May 0.4"
June 0.1"
July 0.8"
August 0.5"
September 0.5"
October 0.7"
November 1.4"
December 2.3"

Frost Dates & Growing Season

First Fall Freeze

November 8

50% probability date

Last Spring Freeze

April 22

50% probability date

Growing Season

200 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

4,361

Higher = more heating needed

Cooling Degree Days

537

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What MT Laguna's climate means for you

MT Laguna runs 54°F a year - peaking in July, coldest in January.

  • Gardeners get about 200 frost-free days, with the last spring freeze near April 22 - plan the planting calendar around it, not the regional average.
  • Energy bills track 4,361 heating and 537 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: MT Laguna, CA

MT Laguna, California runs an annual average of 54°F, ranging from a mean daily high of 65°F to a mean daily low of 44°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while January is the coldest. Drawn from station USC00045968, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.

Beyond temperature, MT Laguna averages 17.6 inches of precipitation annually, predominantly as rainfall - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 200 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 22 and the first fall freeze near November 8. Turning to energy use, 4,361 heating degree days and 537 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, MT Laguna scores 58/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, July-driven heat at the peak of summer, and January-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.

Frequently Asked Questions

What is the average temperature in MT Laguna, CA?
The average annual temperature in MT Laguna, California is 54°F. The warmest month averages 83°F (28°C) and the coldest averages 33°F (1°C).
How much rain does MT Laguna get?
MT Laguna receives 17.6 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for MT Laguna?
MT Laguna has a climate comfort score of 58/100 (Moderate), milder than 38% of U.S. cities in the PlainClimate database.
When is the growing season in MT Laguna?
MT Laguna has approximately 200 frost-free days per year, with the last spring freeze around April 22 and the first fall freeze around November 8.
How much energy does heating and cooling require in MT Laguna?
MT Laguna has 4,361 heating degree days and 537 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 MT Laguna climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00045968 near MT Laguna.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00045968. For informational purposes only.

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.