Climate Comfort Score
37/100
Below Average
NOAA 1991–2020 normals 39°F annual avg Public-domain federal data
Lennep, MT Climate
Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score
- 39°F
- Avg annual temp
- 37/100
- Comfort score
- 18.5"
- Annual precip
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Lennep
Lennep, Montana averages 39°F a year and scores 37/100 on the comfort index - below average, milder than 3% of U.S. cities.
- 39°F
- yearly average temperature, NOAA normal
- 37/100
- comfort score, milder than 3% of U.S. cities
- 18.5"
- annual precipitation · 96" snow
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
39°F (4°C)
Avg High
51°F
Avg Low
26°F
Annual Precip
18.5"
Annual Snow
95.6"
Comfort Score
37/100
Below Average
Avg Annual Temperature
39°F
30-year mean (NOAA NCEI)
Annual Precipitation
18.5"
Plus 95.6" of snow
Comfort score vs national 100-point ceiling (Lennep) 37.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Below Average for the Lennep area.
How Lennep compares to every U.S. city
Lennep's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
37 Top 97% higher than 3% of 6,915 US cities
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 Lennep
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Lennep captures average conditions across the spread shown, the most recent decade is warmer than the 30-year mean.
- 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 31°F (-1°C) | 13°F (-11°C) | 22°F (-6°C) | 1.0" | 17.0" | 30.2 | 0.0 |
| February | 32°F (0°C) | 12°F (-11°C) | 22°F (-6°C) | 0.9" | 13.3" | 27.2 | 0.0 |
| March | 40°F (5°C) | 18°F (-8°C) | 29°F (-2°C) | 1.1" | 15.5" | 29.6 | 0.0 |
| April | 48°F (9°C) | 24°F (-5°C) | 36°F (2°C) | 1.9" | 12.5" | 26.7 | 0.0 |
| May | 58°F (14°C) | 32°F (0°C) | 45°F (7°C) | 3.1" | 2.5" | 15.6 | 0.0 |
| June | 66°F (19°C) | 39°F (4°C) | 53°F (11°C) | 2.9" | 0.3" | 3.9 | 0.0 |
| July | 77°F (25°C) | 43°F (6°C) | 60°F (16°C) | 1.5" | 0.0" | 0.3 | 1.2 |
| August | 77°F (25°C) | 41°F (5°C) | 59°F (15°C) | 1.3" | 0.0" | 1.7 | 0.9 |
| September | 66°F (19°C) | 35°F (1°C) | 50°F (10°C) | 1.3" | 0.9" | 11.0 | 0.1 |
| October | 52°F (11°C) | 27°F (-3°C) | 39°F (4°C) | 1.6" | 7.9" | 23.8 | 0.0 |
| November | 38°F (3°C) | 19°F (-7°C) | 29°F (-2°C) | 1.1" | 12.5" | 27.4 | 0.0 |
| December | 30°F (-1°C) | 13°F (-11°C) | 21°F (-6°C) | 1.0" | 13.2" | 30.2 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 1.0"
Snow: 17.0"
10.1 days with precipitation
February 0.9"
Snow: 13.3"
9.4 days with precipitation
March 1.1"
Snow: 15.5"
10.8 days with precipitation
April 1.9"
Snow: 12.5"
12.3 days with precipitation
May 3.1"
Snow: 2.5"
12.5 days with precipitation
June 2.9"
Snow: 0.3"
11.8 days with precipitation
July 1.5"
8.4 days with precipitation
August 1.3"
7.7 days with precipitation
September 1.3"
Snow: 0.9"
6.7 days with precipitation
October 1.6"
Snow: 7.9"
9.5 days with precipitation
November 1.1"
Snow: 12.5"
9.1 days with precipitation
December 1.0"
Snow: 13.2"
10.8 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
N/A
50% probability date
Last Spring Freeze
N/A
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
9,598
Higher = more heating needed
Cooling Degree Days
28
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
What Lennep's climate means for you
Lennep runs 39°F a year - peaking in July, coldest in December.
- Energy bills track 9,598 heating and 28 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: Lennep, MT
The NOAA 1991–2020 climate normals describe Lennep, Montana as a location with an annual average temperature of 39°F, ranging from a mean daily high of 51°F to a mean daily low of 26°F. July is typically the warmest month of the year, while December is the coldest. These thirty-year averages, computed from station USC00244954, 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. Lennep receives roughly 18.5 inches of precipitation each year, with 95.6 inches typically falling as snow. Growing-season length varies with elevation and microclimate. For energy use, 9,598 heating degree days and 28 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Lennep scores 37/100 (Below Average), 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 December-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 Lennep, MT? ▼
The average annual temperature in Lennep, Montana is 39°F. The warmest month averages 77°F (25°C) and the coldest averages 12°F (-11°C).
How much rain does Lennep get? ▼
Lennep receives 18.5 inches of precipitation annually, including 95.6 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Lennep? ▼
Lennep has a climate comfort score of 37/100 (Below Average), milder than 3% of U.S. cities in the PlainClimate database.
When is the growing season in Lennep? ▼
Growing season data is not available for Lennep.
How much energy does heating and cooling require in Lennep? ▼
Lennep has 9,598 heating degree days and 28 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 Lennep climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00244954 near Lennep.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00244954. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
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.