FROST Station : CLOVERDALE 3 S, CA1838 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 30 Spring: Years of missing data 24 deg = 6, 28 deg = 6, 32 deg = 5 Years with no occurrence 24 deg = 18, 28 deg = 4, 32 deg = 0 Data years used 24 deg = 24, 28 deg = 24, 32 deg = 25 Fall: Years of missing data 24 deg = 6, 28 deg = 2, 32 deg = 2 Years with no occurrence 24 deg = 17, 28 deg = 4, 32 deg = 0 Data years used 24 deg = 24, 28 deg = 28, 32 deg = 28 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | December 31 | February 3 | March 29 | | | 2 year in 10 later than-- | ---------- | January 26 | March 14 | | | 5 year in 10 later than-- | ---------- | January 8 | February 15 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | December 31 | December 4 | November 10 | | | 2 yr in 10 earlier than-- | January 27 | December 14 | November 18 | | | 5 yr in 10 earlier than-- | ---------- | January 3 | December 2 | | | ------------------------------------------------------------------------ FROST Station : FORT ROSS, CA3191 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 30 Spring: Years of missing data 24 deg = 6, 28 deg = 5, 32 deg = 4 Years with no occurrence 24 deg = 24, 28 deg = 18, 32 deg = 7 Data years used 24 deg = 24, 28 deg = 25, 32 deg = 26 Fall: Years of missing data 24 deg = 4, 28 deg = 4, 32 deg = 2 Years with no occurrence 24 deg = 23, 28 deg = 17, 32 deg = 6 Data years used 24 deg = 26, 28 deg = 26, 32 deg = 28 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | ---------- | February 7 | April 28 | | | 2 year in 10 later than-- | ---------- | December 23 | March 25 | | | 5 year in 10 later than-- | ---------- | ---------- | January 5 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | ---------- | December 25 | November 3 | | | 2 yr in 10 earlier than-- | ---------- | January 31 | December 2 | | | 5 yr in 10 earlier than-- | ---------- | ---------- | February 2 | | | ------------------------------------------------------------------------ FROST Station : GRATON, CA3578 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 30 Spring: Years of missing data 24 deg = 1, 28 deg = 1, 32 deg = 1 Years with no occurrence 24 deg = 8, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 29, 28 deg = 29, 32 deg = 29 Fall: Years of missing data 24 deg = 0, 28 deg = 0, 32 deg = 0 Years with no occurrence 24 deg = 8, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 30, 28 deg = 30, 32 deg = 30 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | February 5 | March 13 | May 3 | | | 2 year in 10 later than-- | January 24 | March 1 | April 24 | | | 5 year in 10 later than-- | December 28 | February 7 | April 5 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | November 20 | November 7 | October 20 | | | 2 yr in 10 earlier than-- | December 4 | November 16 | October 27 | | | 5 yr in 10 earlier than-- | January 3 | December 2 | November 8 | | | ------------------------------------------------------------------------ FROST Station : HEALDSBURG, CA3875 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 30 Spring: Years of missing data 24 deg = 1, 28 deg = 1, 32 deg = 1 Years with no occurrence 24 deg = 24, 28 deg = 7, 32 deg = 0 Data years used 24 deg = 29, 28 deg = 29, 32 deg = 29 Fall: Years of missing data 24 deg = 1, 28 deg = 0, 32 deg = 0 Years with no occurrence 24 deg = 23, 28 deg = 7, 32 deg = 0 Data years used 24 deg = 29, 28 deg = 30, 32 deg = 30 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | December 29 | February 7 | March 11 | | | 2 year in 10 later than-- | ---------- | January 28 | March 1 | | | 5 year in 10 later than-- | ---------- | January 6 | February 8 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | December 31 | December 1 | November 12 | | | 2 yr in 10 earlier than-- | ---------- | December 10 | November 20 | | | 5 yr in 10 earlier than-- | ---------- | December 29 | December 5 | | | ------------------------------------------------------------------------ FROST Station : PETALUMA FIRE STN 3, CA6826 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 30 Spring: Years of missing data 24 deg = 1, 28 deg = 1, 32 deg = 1 Years with no occurrence 24 deg = 15, 28 deg = 1, 32 deg = 0 Data years used 24 deg = 29, 28 deg = 29, 32 deg = 29 Fall: Years of missing data 24 deg = 2, 28 deg = 1, 32 deg = 1 Years with no occurrence 24 deg = 15, 28 deg = 1, 32 deg = 0 Data years used 24 deg = 28, 28 deg = 29, 32 deg = 29 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | February 11 | March 13 | April 23 | | | 2 year in 10 later than-- | January 22 | February 26 | April 8 | | | 5 year in 10 later than-- | ---------- | January 27 | March 10 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | December 14 | November 22 | November 4 | | | 2 yr in 10 earlier than-- | January 7 | December 1 | November 11 | | | 5 yr in 10 earlier than-- | ---------- | December 17 | November 23 | | | ------------------------------------------------------------------------ FROST Station : SANTA ROSA, CA7965 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 30 Spring: Years of missing data 24 deg = 2, 28 deg = 2, 32 deg = 2 Years with no occurrence 24 deg = 16, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 28, 28 deg = 28, 32 deg = 28 Fall: Years of missing data 24 deg = 3, 28 deg = 2, 32 deg = 2 Years with no occurrence 24 deg = 16, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 27, 28 deg = 28, 32 deg = 28 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | January 28 | March 1 | April 28 | | | 2 year in 10 later than-- | January 14 | February 19 | April 13 | | | 5 year in 10 later than-- | ---------- | January 28 | March 17 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | December 14 | November 21 | November 5 | | | 2 yr in 10 earlier than-- | January 1 | November 30 | November 12 | | | 5 yr in 10 earlier than-- | ---------- | December 17 | November 27 | | | ------------------------------------------------------------------------ FROST Station : SONOMA, CA8351 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 30 Spring: Years of missing data 24 deg = 3, 28 deg = 3, 32 deg = 3 Years with no occurrence 24 deg = 11, 28 deg = 1, 32 deg = 0 Data years used 24 deg = 27, 28 deg = 27, 32 deg = 27 Fall: Years of missing data 24 deg = 2, 28 deg = 1, 32 deg = 1 Years with no occurrence 24 deg = 11, 28 deg = 1, 32 deg = 0 Data years used 24 deg = 28, 28 deg = 29, 32 deg = 29 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | February 4 | March 19 | May 8 | | | 2 year in 10 later than-- | January 22 | March 4 | April 23 | | | 5 year in 10 later than-- | December 13 | February 4 | March 26 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | December 1 | November 12 | October 23 | | | 2 yr in 10 earlier than-- | December 14 | November 21 | October 30 | | | 5 yr in 10 earlier than-- | January 18 | December 7 | November 12 | | | ------------------------------------------------------------------------