LOCA derived climate variables:
* cdd: Cooling degree days (annual cumulative number of degrees by which the daily average temperature is greater than 65°F) [degree days (degF)]
* consecDD: Annual maximum number of consecutive dry days (days with total precipitation less than 0.01 inches)
* consecDD-JJA: Summer maximum number of consecutive dry days (days with total precipitation less than 0.01 inches in June, July, and August)
* consecWD: Annual maximum number of consecutive wet days (days with total precipitation greater than or equal to 0.01 inches)
* first-freeze-date: Date of the first fall freeze (annual first occurrence of a minimum temperature at or below 32degF in the fall)
* gdd: Growing degree days, base 50 (annual cumulative number of degrees by which the daily average temperature is greater than 50°F) [degree days (degF)]
* gddmod: Modified growing degree days, base 50 (annual cumulative number of degrees by which the daily average temperature is greater than 50°F; before calculating the daily average temperatures, daily maximum temperatures above 86°F and daily minimum temperatures below 50°F are set to those values) [degree days (degF)]
* growing-season: Length of the growing (frost-free) season (the number of days between the last occurrence of a minimum temperature at or below 32degF in the spring and the first occurrence of a minimum temperature at or below 32degF in the fall)
* growing-season-28F: Length of the growing season, 28°F threshold (the number of days between the last occurrence of a minimum temperature at or below 28°F in the spring and the first occurrence of a minimum temperature at or below 28°F in the fall)
* growing-season-41F: Length of the growing season, 41°F threshold (the number of days between the last occurrence of a minimum temperature at or below 41°F in the spring and the first occurrence of a minimum temperature at or below 41°F in the fall)
* hdd: Heating degree days (annual cumulative number of degrees by which the daily average temperature is less than 65°F) [degree days (degF)]
* last-freeze-date: Date of the last spring freeze (annual last occurrence of a minimum temperature at or below 32degF in the spring)
* pr-above-99th: Annual total precipitation for all days exceeding the 99th percentile, calculated with reference to 1976-2005 [inches]
* pr-annual: Annual total precipitation [inches]
* pr-days-above-99th: Annual number of days with precipitation exceeding the 99th percentile, calculated with reference to 1976-2005 [inches]
* pr1in: Annual number of days with total precipitation greater than 1 inch
* pr2in: Annual number of days with total precipitation greater than 2 inches
* pr3in: Annual number of days with total precipitation greater than 3 inches
* pr4in: Annual number of days with total precipitation greater than 4 inches
* prmax1day: Annual highest precipitation total for a single day [inches]
* prmax5day: Annual highest precipitation total over a 5-day period [inches]
* tavg: Daily average temperature [degF]
* tmax: Daily maximum temperature [degF]
* tmax-days-above-99th: Annual number of days with maximum temperature greater than the 99th percentile, calculated with reference to 1976-2005
* tmax-days-below-1st: Annual number of days with maximum temperature lower than the 1st percentile, calculated with reference to 1976-2005
* tmax100F: Annual number of days with a maximum temperature greater than 100degF
* tmax105F: Annual number of days with a maximum temperature greater than 105degF
* tmax110F: Annual number of days with a maximum temperature greater than 110degF
* tmax115F: Annual number of days with a maximum temperature greater than 115degF
* tmax1day: Annual single highest maximum temperature [degF]
* tmax32F: Annual number of icing days (days with a maximum temperature less than 32degF)
* tmax5day: Annual highest maximum temperature averaged over a 5-day period [degF]
* tmax86F: Annual number of days with a maximum temperature greater than 86degF
* tmax90F: Annual number of days with a maximum temperature greater than 90degF
* tmax95F: Annual number of days with a maximum temperature greater than 95degF
* tmin: Daily minimum temperature [degF]
* tmin-days-above-75F: Annual number of days with a minimum temperature greater than 75degF
* tmin-days-above-80F: Annual number of days with a minimum temperature greater than 80degF
* tmin-days-above-85F: Annual number of days with a minimum temperature greater than 85degF
* tmin-days-above-90F: Annual number of days with a minimum temperature greater than 90degF
* tmin-days-above-99th: Annual number of days with minimum temperature greater than the 99th percentile, calculated with reference to 1976-2005
* tmin-days-below-1st: Annual number of days with minimum temperature lower than the 1st percentile, calculated with reference to 1976-2005
* tmin-days-below-28F: Annual number of days with a minimum temperature less than 28degF
* tmin-max5day: Annual highest minimum temperature averaged over a 5-day period [degF]
* tmin1day: Annual single lowest minimum temperature [degF]
* tmin32F: Annual number of frost days (days with a minimum temperature less than 32degF)
* tmin5day: Annual lowest minimum temperature averaged over a 5-day period [degF]

For freeze-related variables:
The first fall freeze is defined as the date of the first occurrence of 32degF or lower in the nine months starting midnight August 1. Grid points with more than 10 of the 30 years not experiencing an occurrence of 32degF or lower are excluded from the analysis.
No freeze occurrence, value = 999

The last spring freeze is defined as the date of the last occurrence of 32degF or lower in the nine months prior to midnight August 1. Grid points with more than 10 of the 30 years not experiencing an occurrence of 32degF or lower are excluded from the analysis.
No freeze occurrence, value = 999

The growing season is defined as the number of days between the last occurrence of 28degF/32degF/41degF or lower in the nine months prior to midnight August 1 and the first occurrence of 28degF/32degF/41degF or lower in the nine months starting August 1. Grid points with more than 10 of the 30 years not experiencing an occurrence of 28degF/32degF/41degF or lower are excluded from the analysis.
No freeze occurrence, value = 999