Delta weather by month
What a typical year looks like in Delta, Colorado: average highs and lows, rain and snow, and the warmest and coldest days on record. No nearby active station has official 1991–2020 normals, so these are forecast.blue’s own averages computed from daily observations at Eckert, 14 km from Delta, over its available record (2015–2026) — not an NCEI normal; records cover 2015–2026.
The year at a glance
- Precipitation a year
- 2.5 in64 mm
- Snow a year
- Rare
- Last spring freeze
- May 11
- First fall freeze
- Sep 29
- Heating degree days
- —
- Cooling degree days
- —
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 3°−16° (heating, 99%) and 100°38° (cooling, 1%).
Month by month
Delta in January
Highs average 41°5° and lows 16°−9°, with — of precipitation in a typical January.
- Record high
- 62°17° (2024)
- Record low
- −12°−24° (2019)
- Heating degree days
- —
- Cooling degree days
- —
Delta in February
Highs average 49°9° and lows 21°−6°, with — of precipitation in a typical February.
- Record high
- 70°21° (2025)
- Record low
- −9°−23° (2023)
- Heating degree days
- —
- Cooling degree days
- —
Delta in March
Highs average 59°15° and lows 28°−2°, with — of precipitation in a typical March.
- Record high
- 89°32° (2026)
- Record low
- 7°−14° (2018)
- Heating degree days
- —
- Cooling degree days
- —
Delta in April
Highs average 67°20° and lows 33°0°, with — of precipitation in a typical April.
- Record high
- 85°29° (2019)
- Record low
- 14°−10° (2023)
- Heating degree days
- —
- Cooling degree days
- —
Delta in May
Highs average 76°24° and lows 40°5°, with 0.5 in13 mm of precipitation in a typical May.
- Record high
- 103°39° (2018)
- Record low
- 25°−4° (2024)
- Heating degree days
- —
- Cooling degree days
- —
Delta in June
Highs average 89°32° and lows 49°10°, with 0.4 in10 mm of precipitation in a typical June.
- Record high
- 116°47° (2019)
- Record low
- 34°1° (2023)
- Heating degree days
- —
- Cooling degree days
- —
Delta in July
Highs average 93°34° and lows 56°13°, with 0.5 in13 mm of precipitation in a typical July.
- Record high
- 128°53° (2019)
- Record low
- 42°6° (2017)
- Heating degree days
- —
- Cooling degree days
- —
Delta in August
Highs average 90°32° and lows 54°12°, with 0.6 in15 mm of precipitation in a typical August.
- Record high
- 103°39° (2025)
- Record low
- 41°5° (2019)
- Heating degree days
- —
- Cooling degree days
- —
Delta in September
Highs average 83°28° and lows 46°8°, with 0.5 in13 mm of precipitation in a typical September.
- Record high
- 98°37° (2022)
- Record low
- 27°−3° (2017)
- Heating degree days
- —
- Cooling degree days
- —
Delta in OctoberThis month
Highs average 69°20° and lows 33°1°, with — of precipitation in a typical October.
- Record high
- 87°31° (2015)
- Record low
- −2°−19° (2020)
- Heating degree days
- —
- Cooling degree days
- —
Delta in November
Highs average 55°13° and lows 23°−5°, with — of precipitation in a typical November.
- Record high
- 74°23° (2025)
- Record low
- 7°−14° (2022)
- Heating degree days
- —
- Cooling degree days
- —
Delta in December
Highs average 43°6° and lows 18°−8°, with — of precipitation in a typical December.
- Record high
- 68°20° (2025)
- Record low
- −9°−23° (2015)
- Heating degree days
- —
- Cooling degree days
- —
Delta station, 1893–2000: records and averages
This station is no longer reporting, but its 1893–2000 record is the longest and most local history available. These are its own averages over its own period of record — not NCEI normals, and not the same station as the computed averages above.
January
Average high 39°4°, low 12°−11°, 0.5 in13 mm precipitation.
Record high 72°22° (1986); record low −36°−38° (1913).
February
Average high 47°8°, low 19°−7°, 0.4 in10 mm precipitation.
Record high 78°26° (1972); record low −27°−33° (1951).
March
Average high 57°14°, low 26°−3°, 0.6 in15 mm precipitation.
Record high 83°28° (1896); record low −2°−19° (1927).
April
Average high 68°20°, low 34°1°, 0.6 in15 mm precipitation.
Record high 95°35° (1989); record low 8°−13° (1945).
May
Average high 78°25°, low 42°5°, 0.7 in18 mm precipitation.
Record high 100°38° (1896); record low 18°−8° (1909).
June
Average high 88°31°, low 49°9°, 0.5 in13 mm precipitation.
Record high 108°42° (1901); record low 29°−2° (1954).
July
Average high 93°34°, low 55°13°, 0.7 in18 mm precipitation.
Record high 109°43° (1900); record low 36°2° (1904).
August
Average high 90°32°, low 53°12°, 1.1 in28 mm precipitation.
Record high 109°43° (1900); record low 33°1° (1974).
September
Average high 82°28°, low 44°7°, 0.9 in23 mm precipitation.
Record high 101°38° (1899); record low 20°−7° (1971).
October
Average high 70°21°, low 33°1°, 0.9 in23 mm precipitation.
Record high 90°32° (1910); record low 11°−12° (1904).
November
Average high 54°12°, low 23°−5°, 0.5 in13 mm precipitation.
Record high 85°29° (1909); record low −11°−24° (1931).
December
Average high 41°5°, low 15°−10°, 0.4 in10 mm precipitation.
Record high 67°19° (1980); record low −24°−31° (1909).
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