| Climate data for Little Rock (Clinton National Airport), 1991−2020 normals,[a] extremes 1879−present[b] | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 83 (28) |
87 (31) |
91 (33) |
95 (35) |
98 (37) |
107 (42) |
112 (44) |
114 (46) |
106 (41) |
98 (37) |
86 (30) |
81 (27) |
114 (46) |
| Mean maximum °F (°C) | 72.0 (22.2) |
75.8 (24.3) |
82.2 (27.9) |
86.2 (30.1) |
91.3 (32.9) |
96.2 (35.7) |
100.2 (37.9) |
101.1 (38.4) |
96.2 (35.7) |
89.2 (31.8) |
79.6 (26.4) |
72.8 (22.7) |
102.4 (39.1) |
| Mean daily maximum °F (°C) | 50.5 (10.3) |
55.2 (12.9) |
63.7 (17.6) |
72.8 (22.7) |
80.5 (26.9) |
88.2 (31.2) |
91.7 (33.2) |
91.5 (33.1) |
85.1 (29.5) |
74.2 (23.4) |
61.9 (16.6) |
52.6 (11.4) |
72.3 (22.4) |
| Daily mean °F (°C) | 40.7 (4.8) |
44.7 (7.1) |
52.7 (11.5) |
61.4 (16.3) |
69.9 (21.1) |
78.0 (25.6) |
81.4 (27.4) |
80.8 (27.1) |
74.0 (23.3) |
62.6 (17.0) |
51.1 (10.6) |
43.0 (6.1) |
61.7 (16.5) |
| Mean daily minimum °F (°C) | 30.9 (−0.6) |
34.2 (1.2) |
41.8 (5.4) |
50.1 (10.1) |
59.3 (15.2) |
67.7 (19.8) |
71.2 (21.8) |
70.1 (21.2) |
62.9 (17.2) |
50.9 (10.5) |
40.2 (4.6) |
33.3 (0.7) |
51.0 (10.6) |
| Mean minimum °F (°C) | 16.4 (−8.7) |
20.5 (−6.4) |
26.6 (−3.0) |
36.9 (2.7) |
47.2 (8.4) |
59.8 (15.4) |
65.6 (18.7) |
63.8 (17.7) |
50.4 (10.2) |
37.1 (2.8) |
26.4 (−3.1) |
20.3 (−6.5) |
13.6 (−10.2) |
| Record low °F (°C) | −8 (−22) |
−12 (−24) |
11 (−12) |
28 (−2) |
38 (3) |
46 (8) |
54 (12) |
52 (11) |
37 (3) |
27 (−3) |
10 (−12) |
−1 (−18) |
−12 (−24) |
| Average precipitation inches (mm) | 3.50 (89) |
3.97 (101) |
4.96 (126) |
5.59 (142) |
5.08 (129) |
3.55 (90) |
3.33 (85) |
3.16 (80) |
3.01 (76) |
4.47 (114) |
4.72 (120) |
5.08 (129) |
50.42 (1,281) |
| Average snowfall inches (cm) | 1.1 (2.8) |
1.6 (4.1) |
0.5 (1.3) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.6 (1.5) |
3.8 (9.7) |
| Average precipitation days (≥ 0.01 in) | 9.2 | 9.3 | 10.5 | 9.4 | 10.9 | 8.0 | 8.7 | 7.2 | 6.6 | 8.1 | 8.5 | 9.5 | 105.9 |
| Average snowy days (≥ 0.1 in) | 0.5 | 0.9 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.3 | 2.2 |
| Average relative humidity (%) | 70.2 | 68.3 | 65.4 | 66.7 | 71.1 | 70.0 | 71.6 | 71.7 | 73.5 | 70.4 | 71.0 | 70.9 | 70.1 |
| Average dew point °F (°C) | 28.9 (−1.7) |
32.4 (0.2) |
40.3 (4.6) |
49.6 (9.8) |
59.2 (15.1) |
66.2 (19.0) |
70.2 (21.2) |
68.5 (20.3) |
63.1 (17.3) |
51.1 (10.6) |
41.7 (5.4) |
32.7 (0.4) |
50.3 (10.2) |
| Mean monthly sunshine hours | 180.9 | 188.2 | 244.5 | 276.7 | 325.3 | 346.2 | 351.0 | 323.0 | 271.9 | 251.0 | 176.9 | 166.2 | 3,101.8 |
| Percent possible sunshine | 58 | 62 | 66 | 71 | 75 | 80 | 80 | 78 | 73 | 72 | 57 | 54 | 70 |
| Average ultraviolet index | 2.5 | 3.8 | 5.7 | 7.6 | 8.9 | 9.6 | 9.8 | 8.9 | 7.2 | 4.9 | 3.0 | 2.3 | 6.1 |
| Source 1: NOAA (relative humidity and dew point 1961-1990, sun 1961−1990 at North Little Rock Airport)[1][2][3][4][5] | |||||||||||||
| Source 2: UV Index Today (1995 to 2022)[6] | |||||||||||||
- ^ Mean monthly maxima and minima (i.e. the expected highest and lowest temperature readings at any point during the year or given month) calculated based on data at said location from 1991 to 2020.
- ^ Official records for Little Rock began on 1 July 1879 at the State Capitol and maintained there until 30 April 1942. The next day, and until 7 August 1942, temperature and precipitation were recorded separately at two different locations in and around Little Rock, and the official climatology station has been Adams Field since 8 August 1942. For more information, see Threadex
- ^ "NowData − NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved June 18, 2021.
- ^ "Station: Little Rock AP Adams FLD, AR". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991−2020). National Oceanic and Atmospheric Administration. Retrieved June 18, 2021.
- ^ "Climatological Averages, Statistics and Records for Little Rock, Arkansas" (PDF). National Weather Service. Retrieved June 18, 2021.
- ^ "Little Rock Climate Normals 1961-1990". National Oceanic and Atmospheric Administration. Retrieved August 28, 2023.
- ^ "WMO 1961–1990 Climate Normals for North Little Rock Airport". National Oceanic and Atmospheric Administration. Retrieved June 18, 2021.
- ^ "Historical UV Index Data - Little Rock, AR". UV Index Today. Retrieved April 20, 2023.