PlainClimate
NOAA 1991–2020 normals 67°F annual avg Public-domain federal data

Monticello, MS Climate

Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →

67°F
Avg annual temp
77/100
Comfort score
60.4"
Annual precip
243d
Growing season

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

The climate verdict for Monticello

Monticello, Mississippi averages 67°F a year and scores 77/100 on the comfort index - good, milder than 72% of U.S. cities.

67°F
yearly average temperature, NOAA normal
77/100
comfort score, milder than 72% of U.S. cities
60.4"
precipitation, annual total
243 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

67°F (20°C)

Avg High

80°F

Avg Low

54°F

Annual Precip

60.4"

Annual Snow

0.2"

Comfort Score

77/100

Good

Climate Comfort Score

77/100

Good

Avg Annual Temperature

67°F

30-year mean (NOAA NCEI)

Annual Precipitation

60.4"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Monticello) 77.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Monticello area.

How Monticello compares to every U.S. city

Monticello's comfort score vs. all U.S. cities

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

77 Top 28% higher than 72% 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%). Below this entry. 60–70: 1,357 US cities (20%). Below this entry. 70–80: 1,102 US cities (16%). This entry sits in this band. 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 Monticello

Methodology

How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Monticello captures average conditions across the spread shown, the most recent decade is 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 62°F (17°C) 36°F (2°C) 49°F (9°C)
February 67°F (19°C) 40°F (4°C) 53°F (12°C)
March 74°F (23°C) 46°F (8°C) 60°F (16°C)
April 81°F (27°C) 53°F (12°C) 67°F (19°C)
May 88°F (31°C) 61°F (16°C) 75°F (24°C)
June 94°F (34°C) 69°F (20°C) 81°F (27°C)
July 96°F (35°C) 71°F (22°C) 84°F (29°C)
August 96°F (35°C) 71°F (22°C) 83°F (29°C)
September 91°F (33°C) 66°F (19°C) 79°F (26°C)
October 82°F (28°C) 54°F (12°C) 68°F (20°C)
November 72°F (22°C) 44°F (6°C) 58°F (14°C)
December 64°F (18°C) 39°F (4°C) 51°F (11°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 6.0"

Snow: 0.1"

8.9 days with precipitation

February 6.0"

8.1 days with precipitation

March 5.7"

7.9 days with precipitation

April 5.8"

6.7 days with precipitation

May 4.5"

7.0 days with precipitation

June 4.7"

8.9 days with precipitation

July 5.9"

10.2 days with precipitation

August 4.2"

8.8 days with precipitation

September 3.6"

5.7 days with precipitation

October 4.2"

5.0 days with precipitation

November 4.7"

6.2 days with precipitation

December 5.2"

Snow: 0.1"

7.8 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

November 10

50% probability date

Last Spring Freeze

March 12

50% probability date

Growing Season

243 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

1,893

Higher = more heating needed

Cooling Degree Days

2,726

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Monticello's climate means for you

Monticello runs 67°F a year - peaking in July, coldest in January.

  • Gardeners get about 243 frost-free days, with the last spring freeze near March 12 - plan the planting calendar around it, not the regional average.
  • Energy bills track 1,893 heating and 2,726 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: Monticello, MS

In Monticello, Mississippi, the NOAA 1991–2020 climate normals put the annual average temperature at 67°F, ranging from a mean daily high of 80°F to a mean daily low of 54°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00225987, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Anyone planning to live, garden, or travel in Monticello should weigh precipitation alongside temperature: the annual average runs 60.4 inches, with negligible snowfall. The frost-free season averages 243 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 12 and the first fall freeze near November 10. And on the energy front, 1,893 heating degree days and 2,726 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Monticello scores 77/100 (Good), 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 Monticello, MS?
The average annual temperature in Monticello, Mississippi is 67°F. The warmest month averages 96°F (35°C) and the coldest averages 36°F (2°C).
How much rain does Monticello get?
Monticello receives 60.4 inches of precipitation annually, including 0.2 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Monticello?
Monticello has a climate comfort score of 77/100 (Good), milder than 72% of U.S. cities in the PlainClimate database.
When is the growing season in Monticello?
Monticello has approximately 243 frost-free days per year, with the last spring freeze around March 12 and the first fall freeze around November 10.
How much energy does heating and cooling require in Monticello?
Monticello has 1,893 heating degree days and 2,726 cooling degree days annually, a fairly balanced heating/cooling split. 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 Monticello climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00225987 near Monticello.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00225987. 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.