PlainClimate
NOAA 1991–2020 normals 45°F annual avg Public-domain federal data

Rexburg Byu Idaho, ID Climate

Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →

45°F
Avg annual temp
44/100
Comfort score
12.6"
Annual precip
135d
Growing season

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

The climate verdict for Rexburg Byu Idaho

Rexburg Byu Idaho, Idaho averages 45°F a year and scores 44/100 on the comfort index - moderate, milder than 8% of U.S. cities.

45°F
average temperature, NOAA 1991-2020 normal
44/100
comfort score, milder than 8% of U.S. cities
12.6"
annual precipitation
135 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

45°F (7°C)

Avg High

57°F

Avg Low

33°F

Annual Precip

12.6"

Comfort Score

44/100

Moderate

Climate Comfort Score

44/100

Moderate

Avg Annual Temperature

45°F

30-year mean (NOAA NCEI)

Annual Precipitation

12.6"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Rexburg Byu Idaho) 44.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Rexburg Byu Idaho area.

How Rexburg Byu Idaho compares to every U.S. city

Rexburg Byu Idaho's comfort score vs. all U.S. cities

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

44 Top 92% higher than 8% 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%). This entry sits in this band. 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 Rexburg Byu Idaho

Methodology

The chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Rexburg Byu Idaho, 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 30°F (-1°C) 14°F (-10°C) 22°F (-6°C)
February 34°F (1°C) 17°F (-8°C) 26°F (-4°C)
March 46°F (8°C) 26°F (-3°C) 36°F (2°C)
April 56°F (13°C) 33°F (1°C) 45°F (7°C)
May 66°F (19°C) 41°F (5°C) 54°F (12°C)
June 75°F (24°C) 47°F (8°C) 61°F (16°C)
July 85°F (29°C) 52°F (11°C) 69°F (20°C)
August 84°F (29°C) 50°F (10°C) 67°F (19°C)
September 74°F (23°C) 43°F (6°C) 58°F (15°C)
October 58°F (15°C) 33°F (1°C) 46°F (8°C)
November 42°F (6°C) 24°F (-5°C) 33°F (0°C)
December 30°F (-1°C) 15°F (-9°C) 23°F (-5°C)

Monthly Precipitation

Average monthly rainfall

January 1.2"

10.8 days with precipitation

February 0.8"

7.6 days with precipitation

March 0.9"

7.5 days with precipitation

April 1.2"

9.3 days with precipitation

May 1.8"

11.1 days with precipitation

June 1.5"

8.3 days with precipitation

July 0.6"

5.3 days with precipitation

August 0.7"

6.2 days with precipitation

September 1.0"

5.8 days with precipitation

October 1.1"

7.9 days with precipitation

November 0.7"

6.7 days with precipitation

December 1.1"

10.9 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

September 24

50% probability date

Last Spring Freeze

May 12

50% probability date

Growing Season

135 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

7,636

Higher = more heating needed

Cooling Degree Days

299

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Rexburg Byu Idaho's climate means for you

Rexburg Byu Idaho runs 45°F a year - peaking in July, coldest in January.

  • Gardeners get about 135 frost-free days, with the last spring freeze near May 12 - plan the planting calendar around it, not the regional average.
  • Energy bills track 7,636 heating and 299 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: Rexburg Byu Idaho, ID

Rexburg Byu Idaho, Idaho runs an annual average of 45°F, ranging from a mean daily high of 57°F to a mean daily low of 33°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 USC00107644, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Rexburg Byu Idaho sees about 12.6 inches of precipitation a 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 12 and the first fall freeze near September 24. On the energy side, 7,636 heating degree days and 299 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Rexburg Byu Idaho scores 44/100 (Moderate), 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 Rexburg Byu Idaho, ID?
The average annual temperature in Rexburg Byu Idaho, Idaho is 45°F. The warmest month averages 85°F (29°C) and the coldest averages 14°F (-10°C).
How much rain does Rexburg Byu Idaho get?
Rexburg Byu Idaho receives 12.6 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Rexburg Byu Idaho?
Rexburg Byu Idaho has a climate comfort score of 44/100 (Moderate), milder than 8% of U.S. cities in the PlainClimate database.
When is the growing season in Rexburg Byu Idaho?
Rexburg Byu Idaho has approximately 135 frost-free days per year, with the last spring freeze around May 12 and the first fall freeze around September 24.
How much energy does heating and cooling require in Rexburg Byu Idaho?
Rexburg Byu Idaho has 7,636 heating degree days and 299 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 Rexburg Byu Idaho climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00107644 near Rexburg Byu Idaho.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00107644. 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.