Green River Aviation Weather Records (USC00423418)
Record envelope, standing records and threshold days for Green River Aviation (USC00423418), Utah, United States, with 61 years of record.
Key Facts for Green River Aviation
- Green River Aviation (USC00423418) is a weather station in Utah, United States at 38.99 latitude and -110.15 longitude, 1,241 m (4,070 ft) above sea level.
- The station reports from 1948 to 2008, 61 years of record.
- 1,464 records set at Green River Aviation still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Green River Aviation set a daily record precipitation of 12.7 mm (0.5 in) on 22 December 2008.
About the Station
- Location: Utah, United States, 38.99 latitude, -110.15 longitude.
- Elevation: 1,241 m (4,070 ft).
- Period of record: 1948 to 2008, 61 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 18.3 C (64.9 F) | -31.7 C (-25.1 F) | n/a | n/a |
| Feb | 21.7 C (71.1 F) | -30.0 C (-22.0 F) | n/a | n/a |
| Mar | 28.9 C (84.0 F) | -14.4 C (6.1 F) | n/a | n/a |
| Apr | 33.9 C (93.0 F) | -9.4 C (15.1 F) | n/a | n/a |
| May | 38.9 C (102.0 F) | -5.0 C (23.0 F) | n/a | n/a |
| Jun | 42.2 C (108.0 F) | 0.6 C (33.1 F) | n/a | n/a |
| Jul | 45.0 C (113.0 F) | 4.4 C (39.9 F) | n/a | n/a |
| Aug | 43.3 C (109.9 F) | 2.8 C (37.0 F) | n/a | n/a |
| Sep | 38.9 C (102.0 F) | -3.9 C (25.0 F) | n/a | n/a |
| Oct | 33.3 C (91.9 F) | -11.1 C (12.0 F) | n/a | n/a |
| Nov | 23.9 C (75.0 F) | -21.1 C (-6.0 F) | n/a | n/a |
| Dec | 20.0 C (68.0 F) | -26.7 C (-16.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1948 | 19 |
| 1949 | 25 |
| 1950 | 35 |
| 1951 | 20 |
| 1952 | 23 |
| 1953 | 23 |
| 1954 | 22 |
| 1955 | 66 |
| 1956 | 46 |
| 1957 | 25 |
| 1958 | 24 |
| 1959 | 11 |
| 1960 | 19 |
| 1961 | 30 |
| 1962 | 25 |
| 1963 | 20 |
| 1964 | 19 |
| 1965 | 37 |
| 1966 | 18 |
| 1967 | 32 |
| 1968 | 20 |
| 1969 | 25 |
| 1970 | 27 |
| 1971 | 39 |
| 1972 | 27 |
| 1973 | 30 |
| 1974 | 19 |
| 1975 | 36 |
| 1976 | 21 |
| 1977 | 19 |
| 1978 | 29 |
| 1979 | 41 |
| 1980 | 22 |
| 1981 | 22 |
| 1982 | 18 |
| 1983 | 17 |
| 1984 | 23 |
| 1985 | 18 |
| 1986 | 28 |
| 1987 | 12 |
| 1988 | 14 |
| 1989 | 34 |
| 1990 | 24 |
| 1991 | 9 |
| 1992 | 17 |
| 1993 | 8 |
| 1994 | 26 |
| 1995 | 32 |
| 1996 | 43 |
| 1997 | 16 |
| 1998 | 29 |
| 1999 | 19 |
| 2000 | 31 |
| 2001 | 19 |
| 2002 | 15 |
| 2003 | 26 |
| 2004 | 19 |
| 2005 | 28 |
| 2006 | 17 |
| 2007 | 5 |
| 2008 | 1 |
All-Time Record Progression
13 new records| Date | Kind | Detail |
|---|---|---|
| 1979-01-17 | Record snow depth | Record snow depth 35.6 cm (14.0 in) |
| 1979-01-30 | Record low minimum temperature | Record low minimum temperature -31.7 C (-25.1 F) |
| 1979-01-31 | Record snow depth | Record snow depth 43.2 cm (17.0 in) |
| 1983-08-03 | Record daily precipitation | Record daily precipitation 36.8 mm (1.4 in) |
| 1985-07-04 | Record high maximum temperature | Record high maximum temperature 42.2 C (108.0 F) |
| 1985-07-05 | Record high maximum temperature | Record high maximum temperature 42.8 C (109.0 F) |
| 1985-08-03 | Record high minimum temperature | Record high minimum temperature 29.4 C (84.9 F) |
| 1989-07-07 | Record high maximum temperature | Record high maximum temperature 43.3 C (109.9 F) |
| 1994-07-11 | Record high maximum temperature | Record high maximum temperature 45.0 C (113.0 F) |
| 1996-07-15 | Record daily precipitation | Record daily precipitation 38.1 mm (1.5 in) |
| 1999-07-15 | Record daily precipitation | Record daily precipitation 71.6 mm (2.8 in) |
| 2006-03-10 | Record daily snowfall | Record daily snowfall 25.4 cm (10.0 in) |
| 2006-10-05 | Record daily precipitation | Record daily precipitation 91.4 mm (3.6 in) |
Wettest Day of Each Month
Oct: 91.4 mm (3.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 15.5 mm (0.6 in) | 12 January 2001 |
| Feb | 19.3 mm (0.8 in) | 26 February 2004 |
| Mar | 21.8 mm (0.9 in) | 17 March 2003 |
| Apr | 22.9 mm (0.9 in) | 20 April 1984 |
| May | 31.2 mm (1.2 in) | 6 May 1973 |
| Jun | 17.8 mm (0.7 in) | 24 June 1969 |
| Jul | 71.6 mm (2.8 in) | 15 July 1999 |
| Aug | 36.8 mm (1.4 in) | 3 August 1983 |
| Sep | 34.0 mm (1.3 in) | 8 September 1961 |
| Oct | 91.4 mm (3.6 in) | 5 October 2006 |
| Nov | 19.6 mm (0.8 in) | 2 November 1957 |
| Dec | 50.8 mm (2.0 in) | 19 December 2008 |
Period of Record Coverage
1948 to 2008| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1948 | 184 | 50% | No |
| 1949 | 365 | 100% | Yes |
| 1950 | 355 | 97% | Yes |
| 1951 | 364 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 360 | 99% | Yes |
| 1955 | 351 | 96% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 334 | 92% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 363 | 99% | Yes |
| 1962 | 363 | 99% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 334 | 91% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 363 | 99% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 364 | 99% | Yes |
| 1973 | 211 | 58% | No |
| 1974 | 262 | 72% | No |
| 1975 | 327 | 90% | No |
| 1976 | 322 | 88% | No |
| 1977 | 315 | 86% | No |
| 1978 | 324 | 89% | No |
| 1979 | 309 | 85% | No |
| 1980 | 310 | 85% | No |
| 1981 | 322 | 88% | No |
| 1982 | 321 | 88% | No |
| 1983 | 330 | 90% | Yes |
| 1984 | 318 | 87% | No |
| 1985 | 211 | 58% | No |
| 1986 | 273 | 75% | No |
| 1987 | 339 | 93% | Yes |
| 1988 | 338 | 92% | Yes |
| 1989 | 343 | 94% | Yes |
| 1990 | 336 | 92% | Yes |
| 1991 | 351 | 96% | Yes |
| 1992 | 346 | 95% | Yes |
| 1993 | 344 | 94% | Yes |
| 1994 | 353 | 97% | Yes |
| 1995 | 323 | 88% | No |
| 1996 | 304 | 83% | No |
| 1997 | 308 | 84% | No |
| 1998 | 303 | 83% | No |
| 1999 | 312 | 85% | No |
| 2000 | 277 | 76% | No |
| 2001 | 259 | 71% | No |
| 2002 | 246 | 67% | No |
| 2003 | 219 | 60% | No |
| 2004 | 264 | 72% | No |
| 2005 | 245 | 67% | No |
| 2006 | 215 | 59% | No |
| 2007 | 67 | 18% | No |
| 2008 | 25 | 7% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 22 December 2008 | Green River Aviation, US | daily rain | 12.7 mm (0.5 in) | 7.6 mm (0.30 in) | 43 years | 20 of 100 (Routine) |
| 21 December 2008 | Green River Aviation, US | daily rain | 25.4 mm (1.0 in) | 17.5 mm (0.7 in) | 49 years | 60 of 100 (Major) |
| 20 December 2008 | Green River Aviation, US | daily rain | 25.4 mm (1.0 in) | 22.6 mm (0.9 in) | 59 years | 63 of 100 (Major) |
| 19 December 2008 | Green River Aviation, US | monthly rain | 50.8 mm (2.0 in) | 25.4 mm (1.0 in) | 0 years | 56 of 100 (Notable) |
| 17 December 2008 | Green River Aviation, US | daily high max | 12.8 C (55.0 F) | 0.6 C (1.1 F) | 38 years | 18 of 100 (Routine) |
| 8 December 2008 | Green River Aviation, US | monthly rain | 25.4 mm (1.0 in) | 6.3 mm (0.25 in) | 42 years | 48 of 100 (Notable) |
| 2 December 2008 | Green River Aviation, US | daily high max (Tie) | 15.0 C (59.0 F) | tie | 13 years | 2 of 100 (Routine) |
| 14 October 2007 | Green River Aviation, US | daily high min (Tie) | 12.8 C (55.0 F) | tie | 12 years | 2 of 100 (Routine) |
| 5 October 2007 | Green River Aviation, US | monthly high min | 17.2 C (63.0 F) | 2.2 C (4.0 F) | 5 years | 22 of 100 (Routine) |
| 16 September 2007 | Green River Aviation, US | daily high min | 17.8 C (64.0 F) | 0.6 C (1.1 F) | 22 years | 13 of 100 (Routine) |
| 2 September 2007 | Green River Aviation, US | daily high min | 20.0 C (68.0 F) | 1.1 C (2.0 F) | 52 years | 23 of 100 (Routine) |
| 1 September 2007 | Green River Aviation, US | monthly high min (Tie) | 20.6 C (69.1 F) | tie | 11 years | 4 of 100 (Routine) |
| 18 August 2007 | Green River Aviation, US | daily high min | 22.2 C (72.0 F) | 1.1 C (2.0 F) | 24 years | 15 of 100 (Routine) |
| 13 August 2007 | Green River Aviation, US | daily rain (Tie) | 12.7 mm (0.5 in) | tie | 24 years | 3 of 100 (Routine) |
| 12 August 2007 | Green River Aviation, US | daily rain | 30.5 mm (1.2 in) | 17.3 mm (0.7 in) | 37 years | 50 of 100 (Notable) |
| 6 November 2006 | Green River Aviation, US | daily high min | 7.8 C (46.0 F) | 1.7 C (3.1 F) | 45 years | 21 of 100 (Routine) |
| 17 October 2006 | Green River Aviation, US | daily rain | 9.4 mm (0.37 in) | 1.8 mm (0.07 in) | 12 years | 11 of 100 (Routine) |
| 5 October 2006 | Green River Aviation, US | all-time rain | 91.4 mm (3.6 in) | 19.8 mm (0.8 in) | 7 years | 62 of 100 (Major) |
| 5 October 2006 | Green River Aviation, US | daily high min | 13.3 C (55.9 F) | 1.1 C (2.0 F) | 28 years | 15 of 100 (Routine) |
| 16 September 2006 | Green River Aviation, US | daily low max | 18.3 C (64.9 F) | 3.4 C (6.1 F) | 37 years | 23 of 100 (Routine) |
Climate Trend
33 complete years, 1949 to 1997| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1949 | 10.4 C | -0.95 C |
| 1950 | 10.8 C | -0.49 C |
| 1951 | 10.4 C | -0.93 C |
| 1952 | 10.7 C | -0.57 C |
| 1953 | 10.7 C | -0.60 C |
| 1954 | 12.0 C | +0.64 C |
| 1956 | 10.7 C | -0.59 C |
| 1957 | 11.1 C | -0.23 C |
| 1958 | 11.9 C | +0.62 C |
| 1960 | 11.2 C | -0.09 C |
| 1961 | 10.9 C | -0.42 C |
| 1962 | 11.1 C | -0.23 C |
| 1963 | 11.3 C | -0.01 C |
| 1964 | 10.4 C | -0.95 C |
| 1965 | 11.1 C | -0.23 C |
| 1966 | 11.4 C | +0.12 C |
| 1967 | 10.9 C | -0.39 C |
| 1969 | 11.4 C | +0.11 C |
| 1970 | 11.1 C | -0.22 C |
| 1971 | 10.7 C | -0.57 C |
| 1972 | 11.7 C | +0.43 C |
| 1975 | 9.1 C | -2.26 C |
| 1977 | 12.0 C | +0.64 C |
| 1987 | 12.1 C | +0.76 C |
| 1988 | 11.2 C | -0.13 C |
| 1989 | 11.1 C | -0.18 C |
| 1990 | 12.1 C | +0.82 C |
| 1991 | 11.0 C | -0.33 C |
| 1992 | 11.8 C | +0.47 C |
| 1993 | 12.2 C | +0.84 C |
| 1994 | 13.4 C | +2.08 C |
| 1995 | 13.3 C | +2.02 C |
| 1997 | 12.3 C | +0.96 C |
The annual mean temperature here has risen by 0.3 C (0.1 to 0.5) per decade over 1949 to 1997. In Fahrenheit: 0.6 F (0.3 to 0.9) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.3 C (0.1 to 0.5) per decade | 0.6 F (0.3 to 0.9) per decade | 1949 to 1997 | 33 | Rise |
| Mean daily maximum | 0.3 C (0.1 to 0.5) per decade | 0.5 F (0.1 to 0.9) per decade | 1949 to 1997 | 33 | Rise |
| Mean daily minimum | 0.3 C (0.1 to 0.5) per decade | 0.6 F (0.2 to 1.0) per decade | 1949 to 1997 | 33 | Rise |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1948 to 2008| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 45.0 C (113.0 F) | 1994 | 40.0 C (104.0 F) | 61 |
| Coldest night (TNn) | -31.7 C (-25.1 F) | 1979 | -21.1 C (-6.0 F) | 61 |
| Wettest day (Rx1day) | 91.4 mm (3.6 in) | 2006 | 18.5 mm (0.7 in) | 61 |
| Wettest five days (Rx5day) | 114.3 mm (4.5 in) | 2008 | 27.4 mm (1.1 in) | 61 |
| Longest dry spell (CDD) | 104 days | 1972 | 49 days | 61 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1948 | 38.9 C (102.0 F) |
| 1949 | 40.0 C (104.0 F) |
| 1950 | 38.9 C (102.0 F) |
| 1951 | 39.4 C (102.9 F) |
| 1952 | 38.9 C (102.0 F) |
| 1953 | 40.6 C (105.1 F) |
| 1954 | 40.0 C (104.0 F) |
| 1955 | 38.9 C (102.0 F) |
| 1956 | 38.9 C (102.0 F) |
| 1957 | 38.3 C (100.9 F) |
| 1958 | 41.7 C (107.1 F) |
| 1959 | 39.4 C (102.9 F) |
| 1960 | 40.6 C (105.1 F) |
| 1961 | 40.6 C (105.1 F) |
| 1962 | 38.9 C (102.0 F) |
| 1963 | 38.3 C (100.9 F) |
| 1964 | 39.4 C (102.9 F) |
| 1965 | 37.2 C (99.0 F) |
| 1966 | 39.4 C (102.9 F) |
| 1967 | 37.8 C (100.0 F) |
| 1968 | 39.4 C (102.9 F) |
| 1969 | 41.1 C (106.0 F) |
| 1970 | 39.4 C (102.9 F) |
| 1971 | 40.0 C (104.0 F) |
| 1972 | 40.0 C (104.0 F) |
| 1973 | 40.6 C (105.1 F) |
| 1974 | 39.4 C (102.9 F) |
| 1975 | 39.4 C (102.9 F) |
| 1976 | 39.4 C (102.9 F) |
| 1977 | 40.0 C (104.0 F) |
| 1978 | 41.1 C (106.0 F) |
| 1979 | 41.7 C (107.1 F) |
| 1980 | 41.1 C (106.0 F) |
| 1981 | 41.1 C (106.0 F) |
| 1982 | 41.1 C (106.0 F) |
| 1983 | 38.9 C (102.0 F) |
| 1984 | 40.6 C (105.1 F) |
| 1985 | 42.8 C (109.0 F) |
| 1986 | 41.7 C (107.1 F) |
| 1987 | 39.4 C (102.9 F) |
| 1988 | 40.6 C (105.1 F) |
| 1989 | 43.3 C (109.9 F) |
| 1990 | 41.7 C (107.1 F) |
| 1991 | 40.0 C (104.0 F) |
| 1992 | 40.0 C (104.0 F) |
| 1993 | 40.0 C (104.0 F) |
| 1994 | 45.0 C (113.0 F) |
| 1995 | 41.7 C (107.1 F) |
| 1996 | 41.1 C (106.0 F) |
| 1997 | 40.6 C (105.1 F) |
| 1998 | 43.3 C (109.9 F) |
| 1999 | 39.4 C (102.9 F) |
| 2000 | 40.6 C (105.1 F) |
| 2001 | 41.1 C (106.0 F) |
| 2002 | 43.3 C (109.9 F) |
| 2003 | 39.4 C (102.9 F) |
| 2004 | 40.0 C (104.0 F) |
| 2005 | 42.8 C (109.0 F) |
| 2006 | 42.8 C (109.0 F) |
| 2007 | 40.0 C (104.0 F) |
| 2008 | 31.1 C (88.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1948 | -22.8 C (-9.0 F) |
| 1949 | -26.1 C (-15.0 F) |
| 1950 | -20.6 C (-5.1 F) |
| 1951 | -25.6 C (-14.1 F) |
| 1952 | -26.1 C (-15.0 F) |
| 1953 | -19.4 C (-2.9 F) |
| 1954 | -18.9 C (-2.0 F) |
| 1955 | -30.6 C (-23.1 F) |
| 1956 | -19.4 C (-2.9 F) |
| 1957 | -21.1 C (-6.0 F) |
| 1958 | -16.7 C (1.9 F) |
| 1959 | -23.3 C (-9.9 F) |
| 1960 | -27.8 C (-18.0 F) |
| 1961 | -20.0 C (-4.0 F) |
| 1962 | -24.4 C (-11.9 F) |
| 1963 | -28.9 C (-20.0 F) |
| 1964 | -22.8 C (-9.0 F) |
| 1965 | -18.3 C (-0.9 F) |
| 1966 | -23.9 C (-11.0 F) |
| 1967 | -26.7 C (-16.1 F) |
| 1968 | -23.9 C (-11.0 F) |
| 1969 | -19.4 C (-2.9 F) |
| 1970 | -21.1 C (-6.0 F) |
| 1971 | -29.4 C (-20.9 F) |
| 1972 | -26.1 C (-15.0 F) |
| 1973 | -30.0 C (-22.0 F) |
| 1974 | -24.4 C (-11.9 F) |
| 1975 | -25.6 C (-14.1 F) |
| 1976 | -21.1 C (-6.0 F) |
| 1977 | -20.6 C (-5.1 F) |
| 1978 | -26.1 C (-15.0 F) |
| 1979 | -31.7 C (-25.1 F) |
| 1980 | -13.9 C (7.0 F) |
| 1981 | -14.4 C (6.1 F) |
| 1982 | -24.4 C (-11.9 F) |
| 1983 | -16.1 C (3.0 F) |
| 1984 | -30.0 C (-22.0 F) |
| 1985 | -22.2 C (-8.0 F) |
| 1986 | -13.3 C (8.1 F) |
| 1987 | -18.9 C (-2.0 F) |
| 1988 | -26.7 C (-16.1 F) |
| 1989 | -30.0 C (-22.0 F) |
| 1990 | -23.3 C (-9.9 F) |
| 1991 | -23.3 C (-9.9 F) |
| 1992 | -22.8 C (-9.0 F) |
| 1993 | -18.3 C (-0.9 F) |
| 1994 | -14.4 C (6.1 F) |
| 1995 | -16.7 C (1.9 F) |
| 1996 | -17.2 C (1.0 F) |
| 1997 | -20.6 C (-5.1 F) |
| 1998 | -21.7 C (-7.1 F) |
| 1999 | -13.9 C (7.0 F) |
| 2000 | -15.6 C (3.9 F) |
| 2001 | -17.8 C (0.0 F) |
| 2002 | -14.4 C (6.1 F) |
| 2003 | -12.8 C (9.0 F) |
| 2004 | -16.7 C (1.9 F) |
| 2005 | -12.8 C (9.0 F) |
| 2006 | -14.4 C (6.1 F) |
| 2007 | -11.7 C (10.9 F) |
| 2008 | -13.3 C (8.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1948 | 14.0 mm (0.6 in) |
| 1949 | 18.0 mm (0.7 in) |
| 1950 | 19.6 mm (0.8 in) |
| 1951 | 27.2 mm (1.1 in) |
| 1952 | 18.0 mm (0.7 in) |
| 1953 | 16.0 mm (0.6 in) |
| 1954 | 13.0 mm (0.5 in) |
| 1955 | 12.2 mm (0.5 in) |
| 1956 | 5.6 mm (0.22 in) |
| 1957 | 27.9 mm (1.1 in) |
| 1958 | 13.2 mm (0.5 in) |
| 1959 | 13.2 mm (0.5 in) |
| 1960 | 14.5 mm (0.6 in) |
| 1961 | 34.0 mm (1.3 in) |
| 1962 | 13.7 mm (0.5 in) |
| 1963 | 11.2 mm (0.4 in) |
| 1964 | 11.7 mm (0.5 in) |
| 1965 | 34.0 mm (1.3 in) |
| 1966 | 13.2 mm (0.5 in) |
| 1967 | 13.7 mm (0.5 in) |
| 1968 | 19.8 mm (0.8 in) |
| 1969 | 17.8 mm (0.7 in) |
| 1970 | 10.4 mm (0.4 in) |
| 1971 | 16.8 mm (0.7 in) |
| 1972 | 23.4 mm (0.9 in) |
| 1973 | 31.2 mm (1.2 in) |
| 1974 | 22.6 mm (0.9 in) |
| 1975 | 27.4 mm (1.1 in) |
| 1976 | 16.0 mm (0.6 in) |
| 1977 | 13.2 mm (0.5 in) |
| 1978 | 18.5 mm (0.7 in) |
| 1979 | 21.3 mm (0.8 in) |
| 1980 | 21.6 mm (0.9 in) |
| 1981 | 30.5 mm (1.2 in) |
| 1982 | 24.9 mm (1.0 in) |
| 1983 | 36.8 mm (1.4 in) |
| 1984 | 25.4 mm (1.0 in) |
| 1985 | 18.3 mm (0.7 in) |
| 1986 | 25.1 mm (1.0 in) |
| 1987 | 23.6 mm (0.9 in) |
| 1988 | 13.7 mm (0.5 in) |
| 1989 | 6.1 mm (0.24 in) |
| 1990 | 8.9 mm (0.35 in) |
| 1991 | 29.2 mm (1.1 in) |
| 1992 | 15.2 mm (0.6 in) |
| 1993 | 17.5 mm (0.7 in) |
| 1994 | 31.5 mm (1.2 in) |
| 1995 | 14.0 mm (0.6 in) |
| 1996 | 38.1 mm (1.5 in) |
| 1997 | 18.5 mm (0.7 in) |
| 1998 | 28.7 mm (1.1 in) |
| 1999 | 71.6 mm (2.8 in) |
| 2000 | 12.7 mm (0.5 in) |
| 2001 | 15.5 mm (0.6 in) |
| 2002 | 27.4 mm (1.1 in) |
| 2003 | 21.8 mm (0.9 in) |
| 2004 | 19.3 mm (0.8 in) |
| 2005 | 13.5 mm (0.5 in) |
| 2006 | 91.4 mm (3.6 in) |
| 2007 | 30.5 mm (1.2 in) |
| 2008 | 50.8 mm (2.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1948 | 25.2 mm (1.0 in) |
| 1949 | 25.9 mm (1.0 in) |
| 1950 | 26.2 mm (1.0 in) |
| 1951 | 32.6 mm (1.3 in) |
| 1952 | 21.8 mm (0.9 in) |
| 1953 | 26.9 mm (1.1 in) |
| 1954 | 14.4 mm (0.6 in) |
| 1955 | 12.2 mm (0.5 in) |
| 1956 | 11.2 mm (0.4 in) |
| 1957 | 49.6 mm (2.0 in) |
| 1958 | 14.2 mm (0.6 in) |
| 1959 | 22.6 mm (0.9 in) |
| 1960 | 17.8 mm (0.7 in) |
| 1961 | 59.9 mm (2.4 in) |
| 1962 | 26.9 mm (1.1 in) |
| 1963 | 23.1 mm (0.9 in) |
| 1964 | 22.9 mm (0.9 in) |
| 1965 | 39.6 mm (1.6 in) |
| 1966 | 18.3 mm (0.7 in) |
| 1967 | 30.0 mm (1.2 in) |
| 1968 | 22.3 mm (0.9 in) |
| 1969 | 29.2 mm (1.1 in) |
| 1970 | 15.5 mm (0.6 in) |
| 1971 | 23.9 mm (0.9 in) |
| 1972 | 39.6 mm (1.6 in) |
| 1973 | 43.4 mm (1.7 in) |
| 1974 | 35.6 mm (1.4 in) |
| 1975 | 27.4 mm (1.1 in) |
| 1976 | 18.6 mm (0.7 in) |
| 1977 | 19.8 mm (0.8 in) |
| 1978 | 27.7 mm (1.1 in) |
| 1979 | 46.4 mm (1.8 in) |
| 1980 | 31.7 mm (1.2 in) |
| 1981 | 33.6 mm (1.3 in) |
| 1982 | 29.2 mm (1.1 in) |
| 1983 | 37.3 mm (1.5 in) |
| 1984 | 38.1 mm (1.5 in) |
| 1985 | 33.5 mm (1.3 in) |
| 1986 | 38.8 mm (1.5 in) |
| 1987 | 30.5 mm (1.2 in) |
| 1988 | 19.4 mm (0.8 in) |
| 1989 | 9.2 mm (0.36 in) |
| 1990 | 11.4 mm (0.4 in) |
| 1991 | 32.1 mm (1.3 in) |
| 1992 | 22.1 mm (0.9 in) |
| 1993 | 36.1 mm (1.4 in) |
| 1994 | 45.7 mm (1.8 in) |
| 1995 | 39.2 mm (1.5 in) |
| 1996 | 38.1 mm (1.5 in) |
| 1997 | 24.6 mm (1.0 in) |
| 1998 | 39.9 mm (1.6 in) |
| 1999 | 77.5 mm (3.1 in) |
| 2000 | 20.8 mm (0.8 in) |
| 2001 | 27.2 mm (1.1 in) |
| 2002 | 31.2 mm (1.2 in) |
| 2003 | 26.9 mm (1.1 in) |
| 2004 | 22.1 mm (0.9 in) |
| 2005 | 17.4 mm (0.7 in) |
| 2006 | 91.4 mm (3.6 in) |
| 2007 | 55.9 mm (2.2 in) |
| 2008 | 114.3 mm (4.5 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1948 | 41 days |
| 1949 | 51 days |
| 1950 | 63 days |
| 1951 | 30 days |
| 1952 | 54 days |
| 1953 | 45 days |
| 1954 | 61 days |
| 1955 | 73 days |
| 1956 | 73 days |
| 1957 | 34 days |
| 1958 | 83 days |
| 1959 | 88 days |
| 1960 | 52 days |
| 1961 | 56 days |
| 1962 | 49 days |
| 1963 | 58 days |
| 1964 | 61 days |
| 1965 | 32 days |
| 1966 | 60 days |
| 1967 | 78 days |
| 1968 | 35 days |
| 1969 | 33 days |
| 1970 | 46 days |
| 1971 | 49 days |
| 1972 | 104 days |
| 1973 | 33 days |
| 1974 | 65 days |
| 1975 | 39 days |
| 1976 | 90 days |
| 1977 | 79 days |
| 1978 | 70 days |
| 1979 | 79 days |
| 1980 | 48 days |
| 1981 | 39 days |
| 1982 | 33 days |
| 1983 | 24 days |
| 1984 | 43 days |
| 1985 | 37 days |
| 1986 | 34 days |
| 1987 | 38 days |
| 1988 | 37 days |
| 1989 | 71 days |
| 1990 | 54 days |
| 1991 | 58 days |
| 1992 | 79 days |
| 1993 | 35 days |
| 1994 | 37 days |
| 1995 | 78 days |
| 1996 | 51 days |
| 1997 | 41 days |
| 1998 | 28 days |
| 1999 | 81 days |
| 2000 | 29 days |
| 2001 | 52 days |
| 2002 | 52 days |
| 2003 | 46 days |
| 2004 | 35 days |
| 2005 | 31 days |
| 2006 | 103 days |
| 2007 | 31 days |
| 2008 | 20 days |
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
33 years with a frostAcross 33 years with a frost, the median last spring frost at Green River Aviation falls on 3 May and the median first autumn frost on 5 October, which leaves a median of 156 days between them.
Fitted over all years, the growing season changes by +2.5 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1952 to 1997) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 3 May | n/a | 3 May | n/a | -2.3 days per decade |
| First autumn frost | 5 October | n/a | 5 October | n/a | +0.2 days per decade |
| Growing days | 156 days | n/a | 158 days | n/a | +2.5 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
50 years, 1949 to 2006A day with at least 17.8 mm (0.7 in) of rain is expected about once in 2 years. A day with at least 81.1 mm (3.2 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 17.8 mm (0.7 in) | |
| 5 years | 27.7 mm (1.1 in) | |
| 10 years | 36.4 mm (1.4 in) | |
| 25 years | 50.7 mm (2.0 in) | |
| 50 years | 64.3 mm (2.5 in) | |
| 100 years | 81.1 mm (3.2 in) | Longer than the 50 years of record |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 50 years of values from 1949 to 2006.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 91.4 mm (3.6 in) in 2006; 71.6 mm (2.8 in) in 1999; 38.1 mm (1.5 in) in 1996.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).