Record envelope, standing records and threshold days for McRoss (USC00465871), West Virginia, United States, with 34 years of record.
Key Facts for McRoss
McRoss (USC00465871) is a weather station in West Virginia, United States at 37.98 latitude and -80.75 longitude, 746 m (2,446 ft) above sea level.
The station reports from 1955 to 1988, 34 years of record.
1,464 records set at McRoss still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
McRoss set a daily record low maximum temperature of -10.0 C (14.0 F) on 18 December 1988.
About the Station
Location: West Virginia, United States, 37.98 latitude, -80.75 longitude.
Elevation: 746 m (2,446 ft).
Period of record: 1955 to 1988, 34 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at McRoss. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at McRoss, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
21.1 C (70.0 F)
-32.2 C (-26.0 F)
n/a
n/a
Feb
22.8 C (73.0 F)
-26.7 C (-16.1 F)
n/a
n/a
Mar
27.2 C (81.0 F)
-22.2 C (-8.0 F)
n/a
n/a
Apr
31.1 C (88.0 F)
-11.7 C (10.9 F)
n/a
n/a
May
31.1 C (88.0 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
32.2 C (90.0 F)
-3.3 C (26.1 F)
n/a
n/a
Jul
35.0 C (95.0 F)
2.8 C (37.0 F)
n/a
n/a
Aug
34.4 C (93.9 F)
1.7 C (35.1 F)
n/a
n/a
Sep
32.2 C (90.0 F)
-5.0 C (23.0 F)
n/a
n/a
Oct
28.9 C (84.0 F)
-13.9 C (7.0 F)
n/a
n/a
Nov
26.1 C (79.0 F)
-18.3 C (-0.9 F)
n/a
n/a
Dec
21.7 C (71.1 F)
-27.8 C (-18.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at McRoss still stand. 1959 holds the most, with 68.
Standing records at McRoss by the year they were set
Year set
Standing records
1955
21
1956
57
1957
52
1958
34
1959
68
1960
39
1961
36
1962
51
1963
57
1964
47
1965
47
1966
58
1967
50
1968
40
1969
33
1970
43
1971
48
1972
35
1973
46
1974
53
1975
27
1976
55
1977
61
1978
21
1979
41
1980
23
1981
28
1982
31
1983
46
1984
46
1985
47
1986
33
1987
36
1988
54
All-Time Record Progression
2 new records
2 all-time records were set at McRoss between 4 August 1987 and 17 July 1988. Each dot is a new record.
When McRoss set new all-time records
Date
Kind
Detail
1987-08-04
Record high maximum temperature
Record high maximum temperature 34.4 C (93.9 F)
1988-07-17
Record high maximum temperature
Record high maximum temperature 35.0 C (95.0 F)
Wettest Day of Each Month
Nov: 88.9 mm (3.5 in)
The wettest day on record for each calendar month at McRoss. The most was 88.9 mm (3.5 in) on 5 November 1985.
Record daily precipitation for each month at McRoss
Month
Record daily precipitation (mm)
Date
Jan
48.5 mm (1.9 in)
21 January 1979
Feb
43.4 mm (1.7 in)
25 February 1961
Mar
45.7 mm (1.8 in)
21 March 1962
Apr
61.0 mm (2.4 in)
4 April 1977
May
67.3 mm (2.6 in)
28 May 1959
Jun
49.5 mm (1.9 in)
6 June 1973
Jul
82.0 mm (3.2 in)
5 July 1956
Aug
85.6 mm (3.4 in)
20 August 1969
Sep
87.6 mm (3.4 in)
4 September 1981
Oct
70.9 mm (2.8 in)
16 October 1974
Nov
88.9 mm (3.5 in)
5 November 1985
Dec
45.7 mm (1.8 in)
30 December 1969
Period of Record Coverage
1955 to 1988
Complete yearUnder 90 percent of days
34 years of record at McRoss, 1955 to 1988. 3 years have data for under 90 percent of days and are left out of rankings: 1955, 1983, 1986.
Cooler than the station meanWarmer than the station mean
One stripe for each of 28 complete years at McRoss, 1956 to 1987. Blue stripes are years cooler than the station's own mean of 9.8 C (49.6 F); red stripes are warmer. The coolest year was 1985, at 7.9 C (46.2 F), and the warmest was 1973, at 11.0 C (51.7 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at McRoss as warming stripes, 1956 to 1987
Year
Annual mean temperature
Difference from the station mean
1956
10.4 C
+0.67 C
1957
10.8 C
+1.07 C
1958
9.1 C
-0.71 C
1959
10.8 C
+1.01 C
1960
9.4 C
-0.41 C
1961
10.0 C
+0.27 C
1962
10.2 C
+0.42 C
1963
9.2 C
-0.62 C
1964
10.3 C
+0.53 C
1965
10.1 C
+0.33 C
1966
9.2 C
-0.61 C
1967
9.8 C
-0.02 C
1968
9.3 C
-0.45 C
1969
9.4 C
-0.33 C
1970
10.6 C
+0.81 C
1971
10.5 C
+0.77 C
1972
10.1 C
+0.34 C
1973
11.0 C
+1.18 C
1974
10.6 C
+0.83 C
1975
10.8 C
+1.01 C
1976
9.3 C
-0.45 C
1977
9.7 C
-0.08 C
1978
9.4 C
-0.39 C
1979
9.2 C
-0.58 C
1980
9.3 C
-0.43 C
1984
9.0 C
-0.82 C
1985
7.9 C
-1.89 C
1987
8.2 C
-1.54 C
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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
1955 to 1988
Yearly extremes at McRoss: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
35.0 C (95.0 F)
1988
31.1 C (88.0 F)
34
Coldest night (TNn)
-32.2 C (-26.0 F)
1985
-23.9 C (-11.0 F)
34
Wettest day (Rx1day)
88.9 mm (3.5 in)
1985
58.8 mm (2.3 in)
34
Wettest five days (Rx5day)
163.4 mm (6.4 in)
1979
91.6 mm (3.6 in)
34
Longest dry spell (CDD)
27 days
1959
14 days
34
Hottest day (TXx)
The hottest day of the year at McRoss, 1955 to 1988. The record is 35.0 C (95.0 F) in 1988, marked on the chart; the median year is 31.1 C (88.0 F).
Hottest day (TXx) at McRoss by year
Year
Hottest day (TXx)
1955
29.4 C (84.9 F)
1956
32.8 C (91.0 F)
1957
32.2 C (90.0 F)
1958
31.7 C (89.1 F)
1959
32.2 C (90.0 F)
1960
31.1 C (88.0 F)
1961
30.6 C (87.1 F)
1962
33.3 C (91.9 F)
1963
31.1 C (88.0 F)
1964
31.7 C (89.1 F)
1965
32.2 C (90.0 F)
1966
31.7 C (89.1 F)
1967
30.0 C (86.0 F)
1968
31.1 C (88.0 F)
1969
31.1 C (88.0 F)
1970
30.0 C (86.0 F)
1971
30.6 C (87.1 F)
1972
29.4 C (84.9 F)
1973
32.2 C (90.0 F)
1974
29.4 C (84.9 F)
1975
31.1 C (88.0 F)
1976
31.1 C (88.0 F)
1977
32.8 C (91.0 F)
1978
31.7 C (89.1 F)
1979
28.9 C (84.0 F)
1980
32.2 C (90.0 F)
1981
31.1 C (88.0 F)
1982
28.9 C (84.0 F)
1983
32.2 C (90.0 F)
1984
32.2 C (90.0 F)
1985
29.4 C (84.9 F)
1986
26.1 C (79.0 F)
1987
34.4 C (93.9 F)
1988
35.0 C (95.0 F)
Coldest night (TNn)
The coldest night of the year at McRoss, 1955 to 1988. The record is -32.2 C (-26.0 F) in 1985, marked on the chart; the median year is -23.9 C (-11.0 F).
Coldest night (TNn) at McRoss by year
Year
Coldest night (TNn)
1955
-21.7 C (-7.1 F)
1956
-17.8 C (0.0 F)
1957
-23.3 C (-9.9 F)
1958
-21.7 C (-7.1 F)
1959
-23.9 C (-11.0 F)
1960
-24.4 C (-11.9 F)
1961
-25.0 C (-13.0 F)
1962
-25.0 C (-13.0 F)
1963
-27.8 C (-18.0 F)
1964
-23.3 C (-9.9 F)
1965
-26.1 C (-15.0 F)
1966
-23.9 C (-11.0 F)
1967
-21.1 C (-6.0 F)
1968
-26.7 C (-16.1 F)
1969
-24.4 C (-11.9 F)
1970
-25.0 C (-13.0 F)
1971
-20.6 C (-5.1 F)
1972
-26.1 C (-15.0 F)
1973
-23.3 C (-9.9 F)
1974
-18.9 C (-2.0 F)
1975
-20.6 C (-5.1 F)
1976
-22.8 C (-9.0 F)
1977
-30.6 C (-23.1 F)
1978
-24.4 C (-11.9 F)
1979
-25.6 C (-14.1 F)
1980
-23.3 C (-9.9 F)
1981
-23.9 C (-11.0 F)
1982
-28.3 C (-18.9 F)
1983
-27.8 C (-18.0 F)
1984
-26.7 C (-16.1 F)
1985
-32.2 C (-26.0 F)
1986
-23.3 C (-9.9 F)
1987
-23.3 C (-9.9 F)
1988
-21.1 C (-6.0 F)
Wettest day (Rx1day)
The wettest day of the year at McRoss, 1955 to 1988. The record is 88.9 mm (3.5 in) in 1985, marked on the chart; the median year is 58.8 mm (2.3 in).
Wettest day (Rx1day) at McRoss by year
Year
Wettest day (Rx1day)
1955
33.3 mm (1.3 in)
1956
82.0 mm (3.2 in)
1957
43.2 mm (1.7 in)
1958
50.8 mm (2.0 in)
1959
70.6 mm (2.8 in)
1960
71.6 mm (2.8 in)
1961
64.8 mm (2.6 in)
1962
67.3 mm (2.6 in)
1963
63.5 mm (2.5 in)
1964
81.3 mm (3.2 in)
1965
51.1 mm (2.0 in)
1966
52.6 mm (2.1 in)
1967
42.7 mm (1.7 in)
1968
44.5 mm (1.8 in)
1969
85.6 mm (3.4 in)
1970
64.0 mm (2.5 in)
1971
53.6 mm (2.1 in)
1972
52.3 mm (2.1 in)
1973
70.6 mm (2.8 in)
1974
70.9 mm (2.8 in)
1975
53.8 mm (2.1 in)
1976
55.6 mm (2.2 in)
1977
61.0 mm (2.4 in)
1978
43.2 mm (1.7 in)
1979
69.9 mm (2.8 in)
1980
59.7 mm (2.4 in)
1981
87.6 mm (3.4 in)
1982
41.9 mm (1.6 in)
1983
57.9 mm (2.3 in)
1984
61.5 mm (2.4 in)
1985
88.9 mm (3.5 in)
1986
27.9 mm (1.1 in)
1987
53.3 mm (2.1 in)
1988
34.3 mm (1.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at McRoss, 1955 to 1988. The record is 163.4 mm (6.4 in) in 1979, marked on the chart; the median year is 91.6 mm (3.6 in).
Wettest five days (Rx5day) at McRoss by year
Year
Wettest five days (Rx5day)
1955
37.9 mm (1.5 in)
1956
118.6 mm (4.7 in)
1957
89.9 mm (3.5 in)
1958
107.9 mm (4.2 in)
1959
94.0 mm (3.7 in)
1960
82.8 mm (3.3 in)
1961
72.9 mm (2.9 in)
1962
77.7 mm (3.1 in)
1963
83.8 mm (3.3 in)
1964
160.1 mm (6.3 in)
1965
72.4 mm (2.9 in)
1966
105.9 mm (4.2 in)
1967
67.0 mm (2.6 in)
1968
64.7 mm (2.5 in)
1969
136.1 mm (5.4 in)
1970
89.3 mm (3.5 in)
1971
93.2 mm (3.7 in)
1972
95.0 mm (3.7 in)
1973
119.4 mm (4.7 in)
1974
85.1 mm (3.4 in)
1975
79.2 mm (3.1 in)
1976
106.9 mm (4.2 in)
1977
105.9 mm (4.2 in)
1978
68.3 mm (2.7 in)
1979
163.4 mm (6.4 in)
1980
123.9 mm (4.9 in)
1981
114.3 mm (4.5 in)
1982
97.0 mm (3.8 in)
1983
112.1 mm (4.4 in)
1984
80.0 mm (3.1 in)
1985
138.2 mm (5.4 in)
1986
50.5 mm (2.0 in)
1987
87.6 mm (3.4 in)
1988
57.4 mm (2.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at McRoss, 1955 to 1988. The record is 27 days in 1959, marked on the chart; the median year is 14 days.
Longest dry spell (CDD) at McRoss by year
Year
Longest dry spell (CDD)
1955
9 days
1956
14 days
1957
14 days
1958
16 days
1959
27 days
1960
12 days
1961
9 days
1962
11 days
1963
27 days
1964
13 days
1965
16 days
1966
20 days
1967
11 days
1968
12 days
1969
12 days
1970
12 days
1971
10 days
1972
10 days
1973
19 days
1974
16 days
1975
12 days
1976
11 days
1977
16 days
1978
15 days
1979
11 days
1980
20 days
1981
18 days
1982
13 days
1983
16 days
1984
17 days
1985
12 days
1986
10 days
1987
19 days
1988
16 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
28 years with a frost
Across 28 years with a frost, the median last spring frost at McRoss falls on 15 May and the median first autumn frost on 3 October, which leaves a median of 139 days between them.
Fitted over all years, the growing season changes by +1.3 days per decade at this station.
Frost dates and growing season at McRoss
Measure
Median, all years
Earliest period
Recent period (1956 to 1987)
Recent against earliest
Fitted trend
Last spring frost
15 May
n/a
15 May
n/a
-1.1 days per decade
First autumn frost
3 October
n/a
3 October
n/a
+0.2 days per decade
Growing days
139 days
n/a
139 days
n/a
+1.3 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
31 years, 1956 to 1988
A day with at least 60.0 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 99.7 mm (3.9 in) of rain is expected about once in 100 years.
Rainfall return levels at McRoss: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
60.0 mm (2.4 in)
5 years
73.4 mm (2.9 in)
10 years
81.0 mm (3.2 in)
25 years
89.4 mm (3.5 in)
50 years
94.9 mm (3.7 in)
Longer than the 31 years of record
100 years
99.7 mm (3.9 in)
Longer than the 31 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, 31 years of values from 1956 to 1988.
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: 88.9 mm (3.5 in) in 1985; 87.6 mm (3.4 in) in 1981; 85.6 mm (3.4 in) in 1969.
Download the Data
Data for McRoss standing records by year: CSV or JSON. Field meanings are on the data page.
Data for McRoss threshold days by year: CSV or JSON. Field meanings are on the data page.
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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.