Roma climate

Roma Weather in May

NOAA 1991-2020 normals for Rio Grande City, 20.6 km from Roma

Average highs run from 91°F on May 1 to 97°F on May 31, and lows from 66°F to 73°F. Normal precipitation for the month is 2.85 in over about 5 wet days.

May day by day

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

Normal daily high and low temperature at Roma, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
94°F
Average low
70°F
Precipitation
2.85 in
Record high
114°FMay 14, 1995
Record low
50°FMay 1, 1996
Chance of a freeze
0%
Days of 90°F or more
24.5
Daylight
13 h 10 min to 13 h 41 min
Cloud cover
53%
Humidity
62%
Dew point
66°F
Wind
12.8 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
May 191°F66°F107°F 198350°F 199612%0%
May 291°F67°F108°F 200251°F 197612%0%
May 392°F67°F107°F 200251°F 197012%0%
May 492°F67°F106°F 199855°F 197012%0%
May 592°F67°F110°F 199955°F 197912%0%
May 692°F68°F106°F 197555°F 197013%0%
May 792°F68°F108°F 199860°F 197013%0%
May 892°F68°F109°F 199859°F 196613%0%
May 992°F68°F105°F 198860°F 197313%0%
May 1093°F69°F105°F 199055°F 198113%0%
May 1193°F69°F111°F 200657°F 198113%0%
May 1293°F69°F105°F 200058°F 200613%0%
May 1393°F69°F105°F 200058°F 200613%0%
May 1493°F70°F114°F 199558°F 197313%0%
May 1594°F70°F105°F 198056°F 197314%0%
May 1694°F70°F105°F 198054°F 197314%0%
May 1794°F70°F105°F 200356°F 197014%0%
May 1894°F71°F105°F 199555°F 197014%0%
May 1994°F71°F104°F 200157°F 198614%0%
May 2095°F71°F106°F 200359°F 198614%0%
May 2195°F71°F105°F 199063°F 198614%0%
May 2295°F71°F107°F 191062°F 196714%0%
May 2395°F72°F104°F 199861°F 196714%0%
May 2495°F72°F108°F 190963°F 197014%0%
May 2596°F72°F107°F 191064°F 196714%0%
May 2696°F72°F108°F 197365°F 200714%0%
May 2796°F72°F109°F 197364°F 191014%0%
May 2896°F73°F104°F 197364°F 200714%0%
May 2996°F73°F104°F 197963°F 191014%0%
May 3097°F73°F106°F 197964°F 199214%0%
May 3197°F73°F105°F 197964°F 199214%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Roma, in percent, and of at least 0.1 inch of snowfall.0510151102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

May 1
sunrise 6:58 AM, sunset 8:08 PM
May 31
sunrise 6:43 AM, sunset 8:24 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00417622 (Rio Grande City), public domain. Records: NOAA GHCN-Daily, station USC00419976, 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.