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How to average based on day of week in Excel?

doc-average-by-week-1

In Excel, have you ever tried to calculate the average of a list number depending on which day of the week? Supposing, I have the following data range, and now I want to get the average orders of all Mondays, workdays or weekends. This article, I will introduce some formulas to help you to solve this task.

Calculate the average based on day of week with formulas

arrow blue right bubble Calculate the average based on day of week with formulas

Calculate the average based on a specific day of week

To get the average based on a specific day of the week, the following formula may help you. In this example, I will calculate the average orders of Mondays of the data range, please do as follows:

Please enter this formula: =AVERAGE(IF(WEEKDAY(D2:D15)=2,E2:E15)) into a blank cell, and then press Shift + Ctrl + Enter keys together to get the correct result. See screenshot:

doc-average-by-week-2

Note: In the above formula:

D2:D15 is the date range which you based on;

The number 2 indicates Monday, and 1=Sunday, 3=Tuesday, 4=Wednesdays…, you can change the number 2 as your needed;

E2:E15 refers to the data range which you want to get the average.

Tips: The following formula also can help you to solve this problem: =SUMPRODUCT((WEEKDAY(D2:D15,2)=1)*E2:E15)/SUMPRODUCT((WEEKDAY(D2:D15,2)=1)*1) and just press Enter key to get the result. (D2:D15 is the date range which you based on, E2:E15 refers to the data range which you want to get the average, the number 1 indicates Monday, 2 = Tuesday, 3= Wednesdays...)

Calculate the average based on workdays

If you want to average the orders with all workdays in the range, please apply this formula: =AVERAGE(IF(WEEKDAY(D2:D15,2)={1,2,3,4,5},E2:E15)), then press Shift + Ctrl + Enter keys together, and you will get the average orders from Mondays to Fridays.

doc-average-by-week-3

Notes:

1. Here is also another formula may do you a favor:=SUMPRODUCT((WEEKDAY(D2:D15,2)<6)*E2:E15)/SUMPRODUCT((WEEKDAY(D2:D15,2)<6)*1) and press Enter key.

2. In the above formulas: D2:D15 is the date range which you based on, and E2:E15 refers to the data range which you want to get the average.

Calculate the average based on weekends

And if you just want to average the orders in weekends (Saturdays and Sundays), the following formula may do you a favor:

Please type this formula: =AVERAGE(IF(WEEKDAY(D2:D15,2)={6,7},E2:E15)) into a specific blank cell, and press Shift + Ctrl + Enter keys simultaneously, and then you will get only the average orders in weekends. See screenshot:

doc-average-by-week-4

Notes:

1. You can also use the below formula to solve this task: =SUMPRODUCT((WEEKDAY(D2:D15,2)>5)*E2:E15)/SUMPRODUCT((WEEKDAY(D2:D15,2)>5)*1) and just press Enter key.

2. In the above formulas: D2:D15 is the date range which you based on, and E2:E15 refers to the data range which you want to get the average.

Related articles:

How to calculate average between two dates in Excel?

How to average cells based on multiple criteria in Excel?

How to average top or bottom 3 values in Excel?

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Comments (12)
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Manigandan M
Manigandan M
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12-Dec-22 1 Week 51 Mon W-Day 86.85
13-Dec-22 1 Week 51 Tue W-Day 83.57
14-Dec-22 1 Week 51 Wed W-Day 89.67
15-Dec-22 1 Week 51 Thu W-Day 89.67
16-Dec-22 1 Week 51 Fri W-Day 85.45
17-Dec-22 1 Week 51 Sat PH 80.28
18-Dec-22 1 Week 51 Sun FH 85.45

I want the above data average for monday to friday(W-Day) average ,Saturday(PH) and Sunday(FH) average
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skyyang
skyyang     Manigandan M
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Hello, Manigandan
If you need to average from Monday to Friday and average from Saturday and Sunday, please apply the below formulas:
Average from Monday to Friday: =AVERAGE(IF(WEEKDAY(A2:A8,2)={1,2,3,4,5},D2:D8))
Average from Saturday and Sunday: =AVERAGE(IF(WEEKDAY(A2:A8,2)={6,7},D2:D8))
Note: Both the above fromulas are array formulas, please press Shift + Ctrl + Enter keys together to get the correct result.
https://www.extendoffice.com/images/stories/comments/comment-skyyang/2023-comment/doc-average-workdays.png

Please have a try, hope it can help you!
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Phil
Phil
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How do I get my formula to work with it not taking zeros into the average?
=AVERAGE(IF(WEEKDAY($B$4:$B$34,2)={1,2,3,4,5},C4:C34))
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skyyang
skyyang     Phil
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Hello, Phil,
To get the average while skip the zeros, the following formula may help you:
=AVERAGE(IF((WEEKDAY($B$2:$B$14,2)<6)*($C$2:$C$14<>0)=1,$C$2:$C$14))

After pasting the formula, please press Ctrl + Shift + Enter keys together to get the result.

Please have a try, hope it can help you!
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dlee1710
dlee1710
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Yes, this works. Why does it work with such a large RANGE and not just for the number of days in a month?

Doing it my other way I had to manually change the formula's each month. THANK YOU 😀👊
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dlee1710
dlee1710
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I have this formula; {=AVERAGE(IF(WEEKDAY(I12:I25,2)={1,2,3,4,5},J12:J25))} the range: i12:i25(col 1 is the month date series) and j12:j25(col of values to be averaged) will change each day
11/1/2022 57
11/2/2022 45
11/3/2022 58
11/4/2022 51
11/5/2022 56
11/6/2022 65
11/7/2022 79
11/8/2022 80
11/9/2022 56
11/10/2022 60
11/11/2022 51
11/12/2022 59
11/13/2022 79
11/14/2022 76
11/15/2022 76
11/16/2022
11/17/2022
11/18/2022
11/19/2022
11/20/2022
11/21/2022
11/22/2022
11/23/2022
11/24/2022
11/25/2022
11/26/2022
11/27/2022
11/28/2022
11/29/2022
11/30/2022
12/1/2022
12/2/2022

Avg / M-F 61.3 < formula is here {=AVERAGE(IF(WEEKDAY(I12:I25,2)={1,2,3,4,5},J12:J25))}
avg # active each workday

how do i update the 2 ranges every day without manually changing them?
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skyyang
skyyang     dlee1710
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Hello, Daniel
To solve your problem, you just need to adjust the cell references large as this:
=AVERAGE(IF(WEEKDAY(I12:I100000,2)={1,2,3,4,5},J12:J100000))
Please have a try, hope it can help you!
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dlee1710
dlee1710     skyyang
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if I use your formula for just weekends...=AVERAGE(IF(WEEKDAY(I12:I100000,2)={6,7},J12:J100000)) the value comes up as "0.0"
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skyyang
skyyang     dlee1710
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Hello, Daniel
Sorry, the above formula is not correct, plrase use the below formulas:
Average weekend: =AVERAGE(IF(IF(NOT(ISBLANK(B2:B10000)),WEEKDAY(A2:A10000,2)>5,FALSE),B2:B10000,FALSE))
Average workday: =AVERAGE(IF(IF(NOT(ISBLANK(B2:B10000)),WEEKDAY(A2:A10000,2)<6,FALSE),B2:B10000,FALSE))

Note: Both the formulas are array formulas, please press Ctrl + Shift + Enter keys together to get the result.

Please try, thank you!
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Daniel Lee
Daniel Lee
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I have this formula; {=AVERAGE(IF(WEEKDAY(I12:I25,2)={1,2,3,4,5},J12:J25))} the range: i12:i25(col 1 is the month date series) and j12:j25(col of values to be averaged) will change each day
11/1/2022 57
11/2/2022 45
11/3/2022 58
11/4/2022 51
11/5/2022 56
11/6/2022 65
11/7/2022 79
11/8/2022 80
11/9/2022 56
11/10/2022 60
11/11/2022 51
11/12/2022 59
11/13/2022 79
11/14/2022 76
11/15/2022 76
11/16/2022
11/17/2022
11/18/2022
11/19/2022
11/20/2022
11/21/2022
11/22/2022
11/23/2022
11/24/2022
11/25/2022
11/26/2022
11/27/2022
11/28/2022
11/29/2022
11/30/2022
12/1/2022
12/2/2022

Avg / M-F 61.3 < formula is here {=AVERAGE(IF(WEEKDAY(I12:I25,2)={1,2,3,4,5},J12:J25))}
avg # active each workday

how do i update the 2 ranges every day without manually changing them?
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0
Milo Bloom
Milo Bloom
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I found what I needed, why the Cntl Shift Enter to make formula work?
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Ankur
Ankur
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How is it that in the first formula 1 is Sunday but in the second and third formula 7 is Sunday??
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