Rolla Missouri S&t, MO Climate: Temperature & Rain by Month
Annual temperature and rainfall from NOAA NCEI's 1991–2020 normals →; comfort score computed by PlainClimate
30-year climate normals (1991-2020) from Rolla Missouri S&t's primary NOAA station, ROLLA MISSOURI S&T.
The climate verdict for Rolla Missouri S&t
Water is the standout signal in Rolla Missouri S&t, Missouri: 47.4 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 56°F. It scores 78/100 for climate comfort (good), putting it in the top third of station-mapped location scores and exceeding 72% of them.
- 56°F
- annual average temperature (NOAA normal)
- 78/100
- comfort score, above 72% of station-mapped location scores
- 47.4"
- annual precipitation · 17" snow
- 210 days
- frost-free days per growing season
Rolla Missouri S&t: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00237263 · Rolla Missouri S&t, MO 56°F mean · 47.4" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-MID · SWING-WIDE · COMF-TOP · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-MILD 56°F
- RANK-UPPER #4,460
- PHOTO-FINISH ≈ Osceola
- PRCP-MID 47.4"
- SWING-WIDE 47°F
- COMF-TOP 78/100
- LOAD-HEAT 4,612 HDD
- STN-1 USC00237263
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Osceola, MO (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every MO station list.
- Rolla Missouri… (this station) 56°F
- Cold Cahokia, IL 56°F
- Hot Monument Valley, AZ 56°F
- Near Osceola, MO 56°F
- Near Jefferson City…, MO 56°F
Climate Living Index · Rolla Missouri S&t
Rolla Missouri S&t: 66/100 · grade C
Rolla Missouri S&t publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Rolla Missouri S&t, not an official NOAA rating. Rankings still use Comfort Score 78/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 100 calendar days | 76/100 · B |
| Frost-free season | 210 days/year | 71/100 · B |
| Annual temperature balance | 56.3°F · 11.2° from 67.5°F | 64/100 · C |
| Precipitation balance | 47.4 in · 12.4 from 35 in | 57/100 · C |
| Snowfall burden | 17.3 inches/year | 52/100 · D |
Rolla Missouri S&t · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Rolla Missouri S&t is a continental Köppen climate: Dfa
Coldest-month mean 31.7°F and warmest-month mean 78.8°F place this station in continental, no dry season, hot summer climates (Dfa). Class Dfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, hot summer.
- Köppen code
- Dfa
- Group
- Continental
- Warmest month
- 78.8°F
- Coldest month
- 31.7°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Rolla Missouri S&t sits across the climate record
Three NOAA fields for Rolla Missouri S&t's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 65th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Top 26% wettest
- Rolla Missouri S&t's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- 68th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Rolla Missouri S&t compares across U.S. station-mapped locations
Rolla Missouri S&t's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
78 Top 28% score exceeds 72% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). Below this entry.
- 70–80: 650 station-mapped locations (11%). This entry sits in this band.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Rolla Missouri S&t's measured station temperature trend
MethodologyAcross 80 complete annual observations from 1908 to 2025, ROLLA MISSOURI S&T warmed at a fitted rate of 0.07°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Rolla Missouri S&t primary station fitted change +0.07 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 41°F (5°C) | 22°F (-5°C) | 32°F (0°C) | 2.7" | 5.6" | 25.5 | 0.0 |
| February | 46°F (8°C) | 26°F (-3°C) | 36°F (2°C) | 2.5" | 4.1" | 20.7 | 0.0 |
| March | 56°F (13°C) | 35°F (2°C) | 45°F (7°C) | 4.1" | 2.6" | 13.1 | 0.0 |
| April | 67°F (20°C) | 45°F (7°C) | 56°F (13°C) | 4.9" | 0.2" | 2.7 | 0.2 |
| May | 76°F (24°C) | 56°F (13°C) | 66°F (19°C) | 5.5" | 0.0" | 0.0 | 1.1 |
| June | 84°F (29°C) | 65°F (18°C) | 74°F (24°C) | 4.4" | 0.0" | 0.0 | 6.8 |
| July | 89°F (32°C) | 69°F (20°C) | 79°F (26°C) | 4.7" | 0.0" | 0.0 | 16.1 |
| August | 88°F (31°C) | 67°F (19°C) | 78°F (25°C) | 4.5" | 0.0" | 0.0 | 14.2 |
| September | 80°F (27°C) | 59°F (15°C) | 70°F (21°C) | 4.0" | 0.0" | 0.0 | 4.4 |
| October | 69°F (21°C) | 47°F (8°C) | 58°F (15°C) | 3.3" | 0.1" | 1.5 | 0.2 |
| November | 56°F (13°C) | 36°F (2°C) | 46°F (8°C) | 3.9" | 1.3" | 10.5 | 0.0 |
| December | 45°F (7°C) | 27°F (-3°C) | 36°F (2°C) | 2.8" | 3.4" | 22.4 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 90°F around July 25, short of 90°F on every date, while 100 dates carry a normal low at or below freezing, the coldest 22°F near January 16.
The freezing stretch
The normal low stays at or below 32°F into March 7, then returns to freezing around November 29, covering 100 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is May 7, when 43% of years recorded at least a hundredth of an inch. The driest is September 29 at 27%. Summed across the calendar, that is about 120 wet dates a year.
The widest day
October 2 carries the biggest normal gap between afternoon and dawn, 22°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Rolla Missouri S&t.
Where Rolla Missouri S&t Stands Nationally
Days and nights track unusually close together; the widest normal swing, about 22°F, is narrower than most stations record.
Rolla Missouri S&t earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 5.6"
9.4 days with precipitation
Snow: 4.1"
9.1 days with precipitation
Snow: 2.6"
12.1 days with precipitation
Snow: 0.2"
11.8 days with precipitation
13.0 days with precipitation
10.3 days with precipitation
9.4 days with precipitation
9.1 days with precipitation
8.3 days with precipitation
Snow: 0.1"
8.8 days with precipitation
Snow: 1.3"
9.5 days with precipitation
Snow: 3.4"
9.2 days with precipitation
Rolla Missouri S&t spreads its precipitation across the year
Neither half of the year dominates here: June through August take 29% of the annual total and December through February 17%, with neither reaching the 35% that would mark a distinct wet season. Rolla Missouri S&t has no dry season to plan around, though it does carry a wide 47.1°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: May averages 5.5" and February 2.5". The three wettest months together take 32% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
When it rains in Rolla Missouri S&t, it arrives in quantity
47.4" of precipitation falls across only about 120 wet days here, averaging 0.39 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 120 a year, 33% of all days
- Average depth per wet day
- 0.39 inches
- Most wet days
- May, about 13
- Fewest wet days
- September, about 8
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Winter brings real snow to Rolla Missouri S&t
Rolla Missouri S&t averages 17.3 inches of snowfall a year, with January the snowiest month on the normals, spread across roughly 18 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 17.3 inches of depth.
- Days recording measurable snow: about 18 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 4% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
November 1
50% probability date
Last Spring Freeze
April 5
50% probability date
Growing Season
210 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,612
Higher = more heating needed
Cooling Degree Days
1,487
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside MO closest to Rolla Missouri S&t on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (56°F here).
- Benton, IL 56°F · 0.0°F off
- Charlottesville, VA 56°F · 0.0°F off
- Dennard, AR 56°F · 0.0°F off
- English, IN 56°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (47.4" here), excluding temperature-peer places.
- Snow Hill, MD 47.4" · 0.0" off
- Morristown, TN 47.4" · 0.0" off
- Spencer, WV 47.4" · 0.0" off
- Meredith, NH 47.4" · 0.0" off
Snow and freeze rhythm
When cold and snow define Rolla Missouri S&t
heating led · wet · mid swing
Rolla Missouri S&t's energy balance leans toward cold weather: 4,612 annual heating degree days against 1,487 for cooling. Its 47.1°F seasonal range still makes the monthly rows more useful than the annual average alone.
Rolla Missouri S&t's frost-free season lasts about 210 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
-
1. Rolla Missouri S&t coldest normal
January
The monthly mean of 32°F (0°C) sits near freezing, so cold nights and above-freezing afternoons share the same month.
-
2. Rolla Missouri S&t typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Rolla Missouri S&t snow peak
January
Rolla Missouri S&t averages 17.3 inches of snow a year, with January the snowiest month on the normals.
Questions about Rolla Missouri S&t's climate
How much snow does Rolla Missouri S&t get? ▼
How many days above 90°F does Rolla Missouri S&t get? ▼
How much energy does heating and cooling require in Rolla Missouri S&t? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Rolla Missouri S&t's primary station: ROLLA MISSOURI S&T (USC00237263). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Rolla Missouri S&t; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Rolla Missouri S&t comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.