Dermott, Arkansas climate: Normal weather by month, frost dates and records
Dermott's normal year runs from 34°F January nights to 91°F July afternoons, with 56.3 inches of precipitation and 1 inch of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 17.2°C, January lows of 1°C, July highs of 33°C, 1,429 mm of precipitation a year.
- NOAA stationDermott (3 mi NE)
- Station IDUSC00031962
- Location33.56°N 91.39°W
- Elevation145 ft (44 m)
- Population2,453
On October 24, the normal high in Dermott is 73°F and the normal low 49°F, and the chance of measurable rain or snow is 22%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Dermott.
- Jan 51° 34°
- Feb 55° 37°
- Mar 64° 45°
- Apr 73° 53°
- May 82° 62°
- Jun 88° 69°
- Jul 91° 72°
- Aug 91° 70°
- Sep 86° 64°
- Oct 76° 52°
- Nov 63° 43°
- Dec 53° 37°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Dermott each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 34°F. The most precipitation falls in April (6.06 in), the least in August (3.01 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 51°F | 34°F | 42.4°F | 5.52 | 0.5 | 10 | <1 | 15 | 10 h 10 min |
| February | 55°F | 37°F | 46.3°F | 5.40 | 0.5 | 9 | <1 | 10 | 11 h |
| March | 64°F | 45°F | 54.6°F | 5.45 | 0.3 | 10 | <1 | 3 | 12 h |
| April | 73°F | 53°F | 63.1°F | 6.06 | 0.0 | 8 | <1 | <1 | 13 h |
| May | 82°F | 62°F | 71.7°F | 4.97 | 0.0 | 9 | 6 | <1 | 13 h 50 min |
| June | 88°F | 69°F | 78.8°F | 4.00 | 0.0 | 7 | 17 | <1 | 14 h 20 min |
| July | 91°F | 72°F | 81.4°F | 3.85 | 0.0 | 7 | 23 | <1 | 14 h 10 min |
| August | 91°F | 70°F | 80.5°F | 3.01 | 0.0 | 7 | 23 | <1 | 13 h 30 min |
| September | 86°F | 64°F | 74.9°F | 3.14 | 0.0 | 6 | 13 | <1 | 12 h 30 min |
| October | 76°F | 52°F | 64.2°F | 4.42 | 0.0 | 6 | 3 | <1 | 11 h 20 min |
| November | 63°F | 43°F | 53.0°F | 4.46 | 0.0 | 8 | <1 | 5 | 10 h 30 min |
| December | 53°F | 37°F | 44.9°F | 5.99 | 0.0 | 9 | <1 | 13 | 10 h |
| Year (annual) | 73°F | 53°F | 63.0°F | 56.27 | 1.3 | 95 | 86 | 47 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 10°C | 1°C | 5.8°C | 140 mm | 1 cm |
| February | 13°C | 3°C | 7.9°C | 137 mm | 1 cm |
| March | 18°C | 7°C | 12.6°C | 138 mm | 1 cm |
| April | 23°C | 12°C | 17.3°C | 154 mm | 0 cm |
| May | 28°C | 17°C | 22.1°C | 126 mm | 0 cm |
| June | 31°C | 21°C | 26.0°C | 102 mm | 0 cm |
| July | 33°C | 22°C | 27.4°C | 98 mm | 0 cm |
| August | 33°C | 21°C | 26.9°C | 76 mm | 0 cm |
| September | 30°C | 18°C | 23.8°C | 80 mm | 0 cm |
| October | 24°C | 11°C | 17.9°C | 112 mm | 0 cm |
| November | 17°C | 6°C | 11.7°C | 113 mm | 0 cm |
| December | 12°C | 3°C | 7.2°C | 152 mm | 0 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00031962; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Dermott?
Normal highs sit between 65°F and 85°F in April, May and October. Of those, October has the fewest days with rain (6).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00031962.
When is the last frost in Dermott?
In Dermott, the last spring frost (32°F) comes after March 13 in half of years and after March 31 in one year in ten; the first autumn frost comes before November 10 in half of years and before October 25 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- March 131 year in 10 after March 31; 9 in 10 after February 23
- First autumn frost, half of years before
- November 101 year in 10 before October 25; 9 in 10 before November 30
NOAA puts the median frost-free season at 242 days, and the season without a hard freeze (28°F) at 269 days.
A hard freeze (28°F) comes after February 28 in half of springs and before November 23 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Dermott in zone 8b in ZIP code 71638, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Dermott's NOAA station is in zone 8b: the coldest night of a typical year reaches 16°F (24 complete years).
Frost dates for every NOAA station in Arkansas · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00031962; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Dermott?
In a normal year in Dermott, 86 days a year reach 90°F (6 of them 100°F or more), 47 nights fall to 32°F or colder and 95 days bring measurable precipitation.
- Days at 90°F or more
- 86a normal year
- Days at 100°F or more
- 6a normal year
- Nights at 32°F or colder
- 47a normal year
- Days that stay below freezing
- 3high of 32°F or less
- Days with 0.01 inch of precipitation
- 95a normal year
- Days with 1 inch of snow or more
- 1a normal year
The highest temperature in this station's record (since 1963) is 107°F, on July 17, 1980; the lowest is −3°F, on December 24, 1963.
The wettest calendar year on that record is 1991, with 83.91 in; the snowiest season is 1967–68, with 15.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00031962; records: ACIS (NOAA Regional Climate Centers), station USC00031962. Records use complete months only; a month missing more than three days is left out.
How sunny is Dermott?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Dermott, 4.6 kWh per square metre a day. June is the sunniest month (84%) and February the cloudiest (65%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 69% | 2.6 |
| February | 65% | 3.1 |
| March | 72% | 4.3 |
| April | 76% | 5.4 |
| May | 78% | 6.0 |
| June | 84% | 6.6 |
| July | 83% | 6.3 |
| August | 83% | 5.8 |
| September | 82% | 5.1 |
| October | 80% | 4.0 |
| November | 76% | 3.0 |
| December | 69% | 2.3 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Dermott need?
A normal year in Dermott brings 2,853 heating degree days, 47% fewer than the median U.S. place (5,373), and 2,149 cooling degree days, 2.4 times the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 5,601 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 702 | 1 |
| February | 527 | 2 |
| March | 341 | 17 |
| April | 130 | 75 |
| May | 22 | 230 |
| June | 0 | 414 |
| July | 0 | 508 |
| August | 0 | 480 |
| September | 10 | 309 |
| October | 122 | 97 |
| November | 374 | 13 |
| December | 624 | 2 |
| Year (annual) | 2,853 | 2,149 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00031962. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Dermott been warmer than normal lately?
Over 49 complete years from 1965 to 2017, the station's annual mean temperature rose at a fitted 6.2°F per century (+0.35°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Dermott's climate compare?
Dermott is warmer than 69 of the other 85 places with their own NOAA record in Arkansas, and wetter than 72. Across the 7,247 U.S. stations with normals, its annual mean of 63.0°F is warmer than 83%.
In the Köppen classification computed from these normals, Dermott is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Dermott share this climate record?
6 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- McGehee, AR3,504 people · 5 mi N
- Tillar, AR158 people · 11 mi N
- Reed, AR115 people · 10 mi N
- Collins, AR98 people · 11 mi W
- Scott, MS40 people · 18 mi E
- Halley, AR10 people · 4 mi SE
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Dermott's climate
What is the coldest month in Dermott?
January, with a normal high of 51°F and a normal low of 34°F. The warmest is July (91°F by day, 72°F at night).
Does it snow in Dermott?
Yes: 1 inch in a normal year, falling on 1 days with 0.1 inch or more, the most in January (0.5 inches).
What is the rainiest month in Dermott?
April, with 6.06 in of precipitation in a normal year; the driest is August with 3.01 in.
What plant hardiness zone is Dermott in?
The USDA's 2023 map puts Dermott in zone 8b in ZIP code 71638, the nearest ZIP area. By the same method at Dermott's NOAA station, the coldest night of a typical year reaches 16°F (24 years, 1991-2020): zone 8b.
How late can frost come in Dermott?
In half of years the last 32°F night comes after March 13; in one year in ten it comes after March 31. Waiting until March 31 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Arkansas climateThe statewide normals and every place in the state
- Rohwer (2 mi NNE), AR19 miles from this station, 62.9°F a year
- Monticello, AR22 miles from this station, 64.1°F a year
- Portland, AR22 miles from this station, 63.1°F a year
- Greenville, MS24 miles from this station, 64.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made