PlainClimate
NOAA 1991–2020 normals 43°F annual avg Public-domain federal data

Sugar City, ID Climate

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

43°F
Avg annual temp
39/100
Comfort score
107d
Growing season

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

The climate verdict for Sugar City

Sugar City, Idaho averages 43°F a year and scores 39/100 on the comfort index - below average, milder than 4% of U.S. cities.

43°F
yearly average temperature, NOAA normal
39/100
comfort score, milder than 4% of U.S. cities
107 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

43°F (6°C)

Avg High

57°F

Avg Low

29°F

Annual Precip

N/A

Comfort Score

39/100

Below Average

Climate Comfort Score

39/100

Below Average

Avg Annual Temperature

43°F

30-year mean (NOAA NCEI)

Annual Precipitation

N/A

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Sugar City) 39.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Below Average for the Sugar City area.

How Sugar City compares to every U.S. city

Sugar City's comfort score vs. all U.S. cities

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

39 Top 96% higher than 4% 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%). This entry sits in this band. 40–50: 1,302 US cities (19%). Above this entry. 50–60: 1,433 US cities (21%). Above this entry. 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 Sugar City

Methodology

Sugar City'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 29°F (-2°C) 9°F (-13°C) 19°F (-7°C)
February 34°F (1°C) 12°F (-11°C) 23°F (-5°C)
March 46°F (8°C) 23°F (-5°C) 34°F (1°C)
April 57°F (14°C) 30°F (-1°C) 43°F (6°C)
May 67°F (19°C) 37°F (3°C) 52°F (11°C)
June 75°F (24°C) 43°F (6°C) 59°F (15°C)
July 83°F (28°C) 48°F (9°C) 65°F (18°C)
August 84°F (29°C) 46°F (8°C) 65°F (18°C)
September 74°F (23°C) 38°F (3°C) 56°F (13°C)
October 59°F (15°C) 29°F (-1°C) 44°F (7°C)
November 43°F (6°C) 21°F (-6°C) 32°F (0°C)
December 30°F (-1°C) 11°F (-12°C) 21°F (-6°C)

Monthly Precipitation

Average monthly rainfall

January N/A
February N/A
March N/A
April N/A
May N/A
June N/A
July N/A
August N/A
September N/A
October N/A
November N/A
December N/A

Frost Dates & Growing Season

First Fall Freeze

September 13

50% probability date

Last Spring Freeze

May 29

50% probability date

Growing Season

107 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

8,210

Higher = more heating needed

Cooling Degree Days

118

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Sugar City's climate means for you

Sugar City runs 43°F a year - peaking in July, coldest in January.

  • Gardeners get about 107 frost-free days, with the last spring freeze near May 29 - plan the planting calendar around it, not the regional average.
  • Energy bills track 8,210 heating and 118 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: Sugar City, ID

An annual average temperature of 43°F, ranging from a mean daily high of 57°F to a mean daily low of 29°F is what the NOAA 1991–2020 climate normals report for Sugar City, Idaho. July is typically the warmest month of the year, while January is the coldest. That baseline comes from station USC00108818 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Sugar City averages an uncharted amount of precipitation a year, predominantly as rainfall, and that matters as much to daily life here as temperature does. The frost-free season averages 107 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 29 and the first fall freeze near September 13. As for energy demand, 8,210 heating degree days and 118 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Sugar City scores 39/100 (Below Average), 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 Sugar City, ID?
The average annual temperature in Sugar City, Idaho is 43°F. The warmest month averages 84°F (29°C) and the coldest averages 9°F (-13°C).
How much rain does Sugar City get?
Sugar City receives an unknown amount of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Sugar City?
Sugar City has a climate comfort score of 39/100 (Below Average), milder than 4% of U.S. cities in the PlainClimate database.
When is the growing season in Sugar City?
Sugar City has approximately 107 frost-free days per year, with the last spring freeze around May 29 and the first fall freeze around September 13.
How much energy does heating and cooling require in Sugar City?
Sugar City has 8,210 heating degree days and 118 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 Sugar City climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00108818 near Sugar City.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00108818. 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.