MONTHLY CLIMATOLOGICAL SUMMARY for MAY. 2026
NAME: 2025 CITY: Dayton STATE: Maryland
ELEV: 570 ft LAT: 39° 14' 35" N LONG: 76° 59' 54" W
TEMPERATURE (°F), RAIN (in), WIND SPEED (mph)
HEAT COOL AVG
MEAN DEG DEG WIND DOM
DAY TEMP HIGH TIME LOW TIME DAYS DAYS RAIN SPEED HIGH TIME DIR
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1 52.5 63.9 3:30p 37.6 6:30a 12.5 0.0 0.00 0.4 7.0 2:00p SSE
2 51.9 58.7 3:30p 46.0 8:00a 13.1 0.0 0.00 0.2 5.0 5:30a NW
3 49.1 60.1 3:30p 38.4 7:30a 15.9 0.0 0.00 0.8 11.0 11:00a NW
4 59.6 73.3 5:30p 40.8 1:30a 7.9 2.4 0.00 0.4 7.0 2:00p S
5 69.9 81.2 3:30p 56.0 6:30a 2.1 7.0 0.00 1.4 10.0 4:00p SSW
6 65.2 71.8 12:30a 59.5 12:00m 1.4 1.6 0.16 0.6 14.0 11:30a SSW
7 55.9 65.4 3:30p 49.1 8:00a 9.1 0.0 0.19 0.0 6.0 1:30p NW
8 56.3 68.4 3:30p 39.9 6:30a 9.3 0.6 0.00 0.4 9.0 11:30a WNW
9 61.5 69.2 5:30p 55.2 2:00a 4.3 0.7 0.00 0.0 5.0 11:30a S
10 62.4 79.8 3:00p 48.7 6:30a 5.9 3.3 0.11 0.1 6.0 2:30p WNW
11 53.8 60.2 12:30a 45.5 12:00m 11.2 0.0 0.00 0.0 5.0 4:00p SW
12 54.9 68.3 3:30p 40.1 7:00a 10.5 0.4 0.00 0.1 7.0 12:30p SSE
13 62.1 72.1 2:00p 54.7 10:30p 4.3 1.4 0.32 0.9 7.0 11:30a SSW
14 54.5 60.4 11:30a 50.9 6:30a 10.5 0.0 0.01 0.3 10.0 11:00a NW
15 58.4 68.3 3:30p 50.3 6:30a 7.2 0.6 0.00 0.3 9.0 9:30a NW
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
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57.9 81.2 5 37.6 1 125.2 18.0 0.79 0.4 14.0 6 NW
Max >= 90.0: 0
Max <= 32.0: 0
Min <= 32.0: 0
Min <= 0.0: 0
Max Rain: 0.32 ON 05/13/26
Days of Rain: 4 (>.01 in) 4 (>.1 in) 0 (>1 in)
Heat Base: 65.0 Cool Base: 65.0 Method: Integration
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ANNUAL CLIMATOLOGICAL SUMMARY
NAME: 2025 CITY: Dayton STATE: Maryland
ELEV: 570 ft LAT: 39° 14' 35" N LONG: 76° 59' 54" W
TEMPERATURE (°F), HEAT BASE 65.0, COOL BASE 65.0
DEP. HEAT COOL
MEAN MEAN FROM DEG DEG MAX MAX MIN MIN
YR MO MAX MIN MEAN NORM DAYS DAYS HI DATE LOW DATE >=90 <=32 <=32 <=0
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26 1 37.5 21.3 29.5 -2.0 1102 0 58.4 7 2.8 31 0 9 25 0
26 2 40.9 25.2 32.6 -1.9 907 0 63.1 28 6.1 9 0 6 18 0
26 3 60.5 38.1 49.2 6.2 522 33 82.1 11 22.0 18 0 0 9 0
26 4 69.7 46.8 58.2 5.7 281 76 88.1 16 28.4 8 0 0 3 0
26 5 68.1 47.5 57.9 -4.1 125 18 81.2 5 37.6 1 0 0 0 0
26 6
26 7
26 8
26 9
26 10
26 11
26 12
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54.0 34.6 44.2 0.8 2938 128 88.1 APR 2.8 JAN 0 15 55 0
PRECIPITATION (in)
DEP. MAX DAYS OF RAIN
FROM OBS. OVER
YR MO TOTAL NORM DAY DATE .01 .1 1
---------------------------------------------
26 1 1.15 -2.27 0.88 10 5 2 0
26 2 2.11 -0.86 0.45 15 8 7 0
26 3 3.81 -0.34 1.88 16 12 6 1
26 4 2.02 -1.49 0.64 29 8 6 0
26 5 0.79 -3.92 0.32 13 4 4 0
26 6
26 7
26 8
26 9
26 10
26 11
26 12
---------------------------------------------
9.88 -8.88 1.88 MAR 37 25 1
WIND SPEED (mph)
DOM
YR MO AVG. HI DATE DIR
---------------------------------
26 1 1.8 24.0 11 NW
26 2 1.8 27.0 7 NW
26 3 1.8 31.0 11 SSW
26 4 0.9 19.0 7 NW
26 5 0.4 14.0 6 NW
26 6
26 7
26 8
26 9
26 10
26 11
26 12
---------------------------------
1.4 31.0 MAR NW
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