PlainClimate
NOAA 1991–2020 normals 47°F annual avg Public-domain federal data

Garden Valley, ID Climate

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

47°F
Avg annual temp
54/100
Comfort score
26.6"
Annual precip
101d
Growing season

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

The climate verdict for Garden Valley

Garden Valley, Idaho averages 47°F a year and scores 54/100 on the comfort index - moderate, milder than 27% of U.S. cities.

47°F
yearly average temperature, NOAA normal
54/100
comfort score, milder than 27% of U.S. cities
26.6"
annual precipitation · 69" snow
101 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

47°F (8°C)

Avg High

61°F

Avg Low

33°F

Annual Precip

26.6"

Annual Snow

69.4"

Comfort Score

54/100

Moderate

Climate Comfort Score

54/100

Moderate

Avg Annual Temperature

47°F

30-year mean (NOAA NCEI)

Annual Precipitation

26.6"

Plus 69.4" of snow

Comfort score vs national 100-point ceiling (Garden Valley) 54.0%
National median (63)

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

How Garden Valley compares to every U.S. city

Garden Valley's comfort score vs. all U.S. cities

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

54 Top 73% higher than 27% 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 Garden Valley

Methodology

The chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Garden Valley, the NOAA 1991-2020 normal captures average conditions across that spread - notably, the most recent decade runs warmer than the 30-year mean itself.

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 34°F (1°C) 19°F (-7°C) 27°F (-3°C)
February 41°F (5°C) 22°F (-6°C) 31°F (0°C)
March 52°F (11°C) 27°F (-3°C) 40°F (4°C)
April 60°F (16°C) 32°F (0°C) 46°F (8°C)
May 69°F (21°C) 38°F (3°C) 54°F (12°C)
June 78°F (26°C) 44°F (6°C) 61°F (16°C)
July 89°F (32°C) 48°F (9°C) 68°F (20°C)
August 89°F (32°C) 46°F (8°C) 67°F (19°C)
September 79°F (26°C) 39°F (4°C) 59°F (15°C)
October 64°F (18°C) 31°F (0°C) 48°F (9°C)
November 44°F (7°C) 26°F (-3°C) 35°F (2°C)
December 33°F (1°C) 20°F (-7°C) 27°F (-3°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 4.2"

Snow: 22.8"

11.9 days with precipitation

February 2.5"

Snow: 10.2"

10.5 days with precipitation

March 2.9"

Snow: 3.5"

10.6 days with precipitation

April 2.1"

Snow: 0.4"

9.8 days with precipitation

May 1.8"

9.2 days with precipitation

June 1.4"

6.7 days with precipitation

July 0.4"

2.7 days with precipitation

August 0.5"

2.4 days with precipitation

September 0.8"

4.0 days with precipitation

October 1.7"

Snow: 0.3"

6.9 days with precipitation

November 3.2"

Snow: 8.0"

10.6 days with precipitation

December 5.0"

Snow: 24.2"

12.8 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

September 10

50% probability date

Last Spring Freeze

June 1

50% probability date

Growing Season

101 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

6,913

Higher = more heating needed

Cooling Degree Days

292

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Garden Valley's climate means for you

Garden Valley runs 47°F a year - peaking in July, coldest in January.

  • Gardeners get about 101 frost-free days, with the last spring freeze near June 1 - plan the planting calendar around it, not the regional average.
  • Energy bills track 6,913 heating and 292 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: Garden Valley, ID

Based on station USC00103448 feeding NOAA's 1991–2020 climate normals, Garden Valley, Idaho averages 47°F a year, ranging from a mean daily high of 61°F to a mean daily low of 33°F. July is typically the warmest month of the year, while January is the coldest. Because these figures are thirty-year averages rather than any single year's readings, they describe the typical month, not a forecast for it.

Anyone planning to live, garden, or travel in Garden Valley should weigh precipitation alongside temperature: the annual average runs 26.6 inches, with 69.4 inches typically falling as snow. The frost-free season averages 101 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near June 1 and the first fall freeze near September 10. And on the energy front, 6,913 heating degree days and 292 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Garden Valley scores 54/100 (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 Garden Valley, ID?
The average annual temperature in Garden Valley, Idaho is 47°F. The warmest month averages 89°F (32°C) and the coldest averages 19°F (-7°C).
How much rain does Garden Valley get?
Garden Valley receives 26.6 inches of precipitation annually, including 69.4 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Garden Valley?
Garden Valley has a climate comfort score of 54/100 (Moderate), milder than 27% of U.S. cities in the PlainClimate database.
When is the growing season in Garden Valley?
Garden Valley has approximately 101 frost-free days per year, with the last spring freeze around June 1 and the first fall freeze around September 10.
How much energy does heating and cooling require in Garden Valley?
Garden Valley has 6,913 heating degree days and 292 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 Garden Valley climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00103448 near Garden Valley.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00103448. 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.