Climate Assessment Report Sample

Design Condition	99.6%	99.0%
Heating DB (°F)	38.84	41.36

Design Condition	Month of Max	0.4%	1%	2%
Cooling DB/MCWB (°F)	Sep	101.8 / 69.3	100.1 / 68.7	97.2 / 67.6
Cooling WB/MCDB (°F)	Jul	75.4 / 91.8	74.2 / 90.4	72.3 / 88.2

DB/MCWB: Peak Dry-Bulb Temperature with Mean Coincident Wet-Bulb Temperature
WB/MCDB: Peak Wet-Bulb Temperature with Mean Coincident Dry-Bulb Temperature

ASHRAE Design Weather Database v7.0
© 2021 ASHRAE, www.ashrae.org. Used with permission.

DB & MCWB Cooling Hourly Design-Day plots are derived from monthly maximum dry bulb temperatures and daily ranges from the ASHRAE Design Weather Database, in accordance with the ASHRAE Fundamentals Handbook. The hours shown are in Apparent Solar Time, and do not account for daylight savings time. The month with the maximum dry bulb temperature is September.

WB & MCDB Cooling Hourly Design-Day plots are derived from monthly maximum wet bulb temperatures and daily ranges from the ASHRAE Design Weather Database, in accordance with the ASHRAE Fundamentals Handbook. The hours shown are in Apparent Solar Time, and do not account for daylight savings time. The month with the maximum wet bulb temperature is July.

The temperatures shown in the plot illustrate the ranges of daily high and low temperatures for each month. The plotted data is derived from a 2-step process:

• Step 1: The daily high temperatures are made up of the maximum temperature during each day of the month. The daily low temperatures follow the same approach except that they start with the minimum temperature for each day.
• Step 2: The statistical plotted data represents the max., mean, and min. as determined from the Step 1 data.

The hottest temperature for the month is the maximum of the daily highs, and the coldest is the minimum of the daily lows. The hottest temperature of the year is 105.1°F, and occurs in October, while the coldest temperature of the year is 33.8°F, and occurs in December.
Important: Hourly data is captured from midnight to midnight, whereas VistaPro begins reporting at 1 am on January 1st.

This figure shows the temperature for each hour of the day, averaged across each month. Temperature bands are colored based on sensory criteria ranging from frigid to sweltering.

The hours in comfort range shown are based on ambient air temperature, considering all hours in the year. The majority of the time, the temperature can be characterized as Cool (55°F to 65°F) on a sensory scale, with only 2204 comfortable hours in the year.

The hours in comfort range shown are based on ambient air temperature, considering occupied hours (8:00-18:00 Monday-Friday) in the year. The majority of the time, the temperature can be characterized as Warm (75°F to 85°F) on a sensory scale, with only 709 comfortable hours in the year.

Temperature comfort levels are based on ambient air temperature, and are displayed as percentage of time spent in each comfort band during each month using a sensory scale, considering all hours in the year. The hottest month is August, and the coldest month is January.

Temperature comfort levels are based on ambient air temperature, and are displayed as percentage of time spent in each comfort band during each month using a sensory scale, considering occupied hours (8:00-18:00 Monday-Friday) in the year. The hottest month is August, and the coldest month is February.

Diurnal temperatures provide an indication of the temperature variation over a single day. This figure shows mean, max and min temperatures for each hour averaged across the month. The month with the highest average variation in temperature over the course of a day (also know as diurnal swing) is September, while the month with the least variation is June.