Frost history / Tuba City, AZ
Tuba City, AZ: frost dates by year
Last spring and first fall frost at NOAA station USC00028792, 1951 to 2012, measured from daily minimum temperatures.
Elevation 4,988 ft, 36.131, -111.244. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 20 | Oct 26 |
| Earliest | Mar 17 (1990) | Oct 10 (2011) |
| Latest | Jun 2 (2011) | Nov 16 (1988) |
| Trend | little change (less than half a day per decade) | 2.1 days earlier per decade |
| Years with data | 24 | 23 |
At 28°F (hard freeze) the median last spring date is Mar 27 and the median first fall date is Nov 4.
The trend is a straight-line fit through the years with a freeze. A positive spring trend means the last frost now comes later. Short or patchy records give noisy trends.
Chart
Last spring frost (32°F)
First fall frost (32°F)
Dots are single years. The gray line is the median, the green line the fitted trend.
Year by year
| Year | Last spring 32°F | First fall 32°F | Last spring 28°F | First fall 28°F |
|---|---|---|---|---|
| 2012 | Apr 15 | Oct 26 | Mar 20 | Nov 11 |
| 2011 | Jun 2 | Oct 10 | Apr 17 | Nov 3 |
| 2010 | May 2 | no data | Apr 30 | no data |
| 2008 | May 2 | no data | Mar 18 | no data |
| 2007 | Apr 24 | Oct 22 | Mar 7 | Oct 22 |
| 2006 | no data | Oct 26 | no data | Nov 15 |
| 2004 | Mar 29 | Oct 24 | Mar 1 | Nov 2 |
| 2003 | Apr 17 | Nov 4 | Apr 6 | Nov 5 |
| 2002 | no data | Nov 3 | no data | Nov 5 |
| 2001 | May 3 | no data | Mar 20 | no data |
| 2000 | Apr 3 | Nov 1 | Mar 22 | Nov 8 |
| 1999 | May 1 | Oct 17 | Apr 11 | Nov 14 |
| 1998 | Apr 19 | Oct 17 | Apr 16 | Oct 17 |
| 1997 | Apr 15 | Oct 13 | Apr 14 | Oct 26 |
| 1996 | Apr 29 | Oct 21 | Mar 25 | Oct 22 |
| 1995 | Apr 20 | Oct 23 | Apr 1 | Oct 23 |
| 1994 | Mar 31 | Oct 16 | Mar 28 | Nov 14 |
| 1993 | Apr 15 | Oct 30 | Mar 14 | Nov 3 |
| 1992 | Mar 24 | Nov 4 | Feb 20 | Nov 4 |
| 1991 | Apr 29 | Oct 29 | Apr 13 | Oct 29 |
| 1990 | Mar 17 | Oct 21 | Mar 17 | Nov 4 |
| 1989 | Apr 28 | Oct 26 | Mar 6 | Oct 30 |
| 1988 | May 7 | Nov 16 | Apr 10 | Nov 16 |
| 1987 | no data | Nov 11 | no data | Nov 16 |
| 1973 | Apr 21 | no data | Apr 20 | no data |
| 1952 | Apr 14 | Nov 5 | Mar 23 | Nov 5 |
| 1951 | May 15 | Oct 28 | Apr 11 | Nov 2 |
"none" means the station recorded no freeze at that threshold in that half of the year. "no data" means more than 10% of the season's daily readings were missing. Years with no usable data are left out. See the methodology for the rules, and the ZIP lookup for 1991–2020 frost probabilities.