Mastic climate

Mastic Weather in August

NOAA 1991-2020 normals for Shirley Brookhaven AP, 3.2 km from Mastic

Average highs run from 83°F on August 1 to 79°F on August 31, and lows from 66°F to 62°F. Normal precipitation for the month is 3.04 in over about 11 wet days.

August day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Mastic, in °F, with the record for each date.406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
81°F
Average low
65°F
Precipitation
3.04 in
Record high
98°FAug 2, 2006
Record low
48°FAug 26, 2004
Chance of a freeze
0%
Days of 90°F or more
2.2
Daylight
14 h 19 min to 13 h 08 min
Cloud cover
54%
Humidity
76%
Dew point
65°F
Wind
7.2 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Aug 183°F66°F94°F 200658°F 202133%0%
Aug 283°F66°F98°F 200655°F 202533%0%
Aug 383°F66°F98°F 200653°F 202534%0%
Aug 482°F66°F91°F 200656°F 201634%0%
Aug 582°F66°F93°F 201056°F 201634%0%
Aug 682°F66°F90°F 201056°F 201334%0%
Aug 782°F66°F95°F 200153°F 200434%0%
Aug 882°F66°F95°F 200151°F 200434%0%
Aug 982°F66°F94°F 200151°F 202534%0%
Aug 1082°F65°F92°F 200956°F 202535%0%
Aug 1182°F65°F92°F 200556°F 200635%0%
Aug 1282°F65°F90°F 201654°F 200635%0%
Aug 1382°F65°F91°F 202150°F 200635%0%
Aug 1482°F65°F95°F 201654°F 200635%0%
Aug 1582°F65°F91°F 201653°F 201335%0%
Aug 1681°F65°F89°F 201856°F 200135%0%
Aug 1781°F65°F90°F 200255°F 200035%0%
Aug 1881°F65°F92°F 200254°F 202535%0%
Aug 1981°F64°F93°F 200255°F 202535%0%
Aug 2081°F64°F88°F 200951°F 200035%0%
Aug 2181°F64°F89°F 200549°F 200035%0%
Aug 2281°F64°F91°F 201953°F 200035%0%
Aug 2381°F64°F86°F 200652°F 200435%0%
Aug 2480°F64°F91°F 202253°F 200335%0%
Aug 2580°F63°F92°F 202250°F 200435%0%
Aug 2680°F63°F92°F 202148°F 200435%0%
Aug 2780°F63°F93°F 202153°F 201935%0%
Aug 2880°F63°F91°F 202450°F 202535%0%
Aug 2979°F63°F91°F 201654°F 200835%0%
Aug 3079°F62°F90°F 201853°F 201235%0%
Aug 3179°F62°F94°F 201054°F 200935%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Mastic, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

August 1
sunrise 5:48 AM, sunset 8:07 PM
August 31
sunrise 6:17 AM, sunset 7:25 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00054790 (Shirley Brookhaven AP), public domain. Records: NOAA GHCN-Daily, station USW00054790, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.