PlainClimate
NOAA 1991–2020 normals 48°F annual avg Public-domain federal data

Cambridge, ID Climate

Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →

48°F
Avg annual temp
64/100
Comfort score
21.4"
Annual precip
135d
Growing season

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

The climate verdict for Cambridge

Cambridge, Idaho averages 48°F a year and scores 64/100 on the comfort index - good, milder than 51% of U.S. cities.

48°F
average temperature, NOAA 1991-2020 normal
64/100
comfort score, milder than 51% of U.S. cities
21.4"
yearly precipitation total
135 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

48°F (9°C)

Avg High

61°F

Avg Low

36°F

Annual Precip

21.4"

Comfort Score

64/100

Good

Climate Comfort Score

64/100

Good

Avg Annual Temperature

48°F

30-year mean (NOAA NCEI)

Annual Precipitation

21.4"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Cambridge) 64.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Cambridge area.

How Cambridge compares to every U.S. city

Cambridge's comfort score vs. all U.S. cities

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

64 Top 49% higher than 51% 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%). Below this entry. 60–70: 1,357 US cities (20%). This entry sits in this band. 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 Cambridge

Methodology

Cambridge'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.

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 30°F (-1°C) 17°F (-8°C) 23°F (-5°C)
February 37°F (3°C) 21°F (-6°C) 29°F (-2°C)
March 51°F (10°C) 29°F (-2°C) 40°F (4°C)
April 62°F (16°C) 35°F (2°C) 48°F (9°C)
May 72°F (22°C) 42°F (6°C) 57°F (14°C)
June 80°F (27°C) 49°F (9°C) 65°F (18°C)
July 93°F (34°C) 56°F (13°C) 74°F (24°C)
August 92°F (33°C) 54°F (12°C) 73°F (23°C)
September 80°F (27°C) 44°F (7°C) 62°F (17°C)
October 63°F (17°C) 34°F (1°C) 49°F (9°C)
November 44°F (7°C) 26°F (-3°C) 35°F (2°C)
December 32°F (0°C) 19°F (-7°C) 25°F (-4°C)

Monthly Precipitation

Average monthly rainfall

January 3.2"

10.4 days with precipitation

February 2.4"

8.8 days with precipitation

March 2.3"

10.3 days with precipitation

April 1.6"

8.6 days with precipitation

May 1.8"

7.9 days with precipitation

June 1.3"

6.0 days with precipitation

July 0.4"

2.3 days with precipitation

August 0.3"

2.1 days with precipitation

September 0.6"

3.3 days with precipitation

October 1.3"

6.4 days with precipitation

November 2.4"

10.2 days with precipitation

December 3.9"

12.2 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

September 27

50% probability date

Last Spring Freeze

May 15

50% probability date

Growing Season

135 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

6,734

Higher = more heating needed

Cooling Degree Days

693

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Cambridge's climate means for you

Cambridge runs 48°F a year - peaking in July, coldest in January.

  • Gardeners get about 135 frost-free days, with the last spring freeze near May 15 - plan the planting calendar around it, not the regional average.
  • Energy bills track 6,734 heating and 693 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: Cambridge, ID

The NOAA 1991–2020 climate normals describe Cambridge, Idaho as a location with an annual average temperature of 48°F, ranging from a mean daily high of 61°F to a mean daily low of 36°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00101408, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Cambridge receives roughly 21.4 inches of precipitation each year, predominantly as rainfall. The frost-free season averages 135 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 15 and the first fall freeze near September 27. For energy use, 6,734 heating degree days and 693 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Cambridge scores 64/100 (Good), 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 Cambridge, ID?
The average annual temperature in Cambridge, Idaho is 48°F. The warmest month averages 93°F (34°C) and the coldest averages 17°F (-8°C).
How much rain does Cambridge get?
Cambridge receives 21.4 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Cambridge?
Cambridge has a climate comfort score of 64/100 (Good), milder than 51% of U.S. cities in the PlainClimate database.
When is the growing season in Cambridge?
Cambridge has approximately 135 frost-free days per year, with the last spring freeze around May 15 and the first fall freeze around September 27.
How much energy does heating and cooling require in Cambridge?
Cambridge has 6,734 heating degree days and 693 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 Cambridge climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00101408 near Cambridge.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00101408. 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.